# Gabi Dumitriu - Crypto CSI: Monitoring Bybit hack with custom crypto forensic t - Channel: [ETHCluj Meetup](https://streameth.org/ethcluj-meetup) - Date: 2026-02-09 - Duration: 42:27 - Watch: https://streameth.org/watch/yt-mQ16ibQweiI - YouTube: https://www.youtube.com/watch?v=mQ16ibQweiI ## Description Monitoring Bybit hack with custom crypto forensic tools. ## Transcript [applause] So yeah, here we are. We are so many here. Like, oh my god, so many. So you decided to come. >> Yeah. Yeah. >> Well, nice. So yeah. Uh I know that's really early in the morning for you because last night we had like two parties, right? We're still waking up. Half of our brains are still like, what are you doing here? Need to sleep, right? Uh but yeah, let's talk about something interesting. Um crypto forensic investigations. My name is Gabby. I've been in the space from 2012. Uh I've done it like it's been such an amazing race for me. Um so we'll be talking about no I I'll have like a short intro from myself because I want to present myself to the audience to to you guys and also present my work since 2012. We will uh talk about the forensic investigation methodology. We'll have like a demo with u three of my investigation tools that I build and then of course a Q&A session and these are my miners from 2014. I was like uh two years and a half in the space since I had them. So yeah, how I started how this journey started for me back in 2012 uh there was like a financial crisis in Cyprus. So back in the days I was uh trading domain names. So in the in the night I saw that uh on Google trends they were like high volumes for Bitcoin, Russia, Cyprus. I was like it's got to be something here. So I asked to myself, well maybe Russiancoin is taken. No, it's not. So I took it. So I created like an affiliate link with local Bitcoin. So uh I managed to bring that Russian bitcoin.com the first one. Um that was my entrance in the crypto space with Bitcoin. Of course, I let it to expire back in 2014 at the U international uh Olympic games in such because Putin put some undercover agents to detect uh onetoone uh Bitcoin transaction because he was sustaining the rubble his local currency. Uh back to the uh roots. Um I built the local currency in my hometown. I'm from Yash. So local in Yash. Welcome Localis. It's a local currency uh built for local entrepreneurs to sustain local um uh communities and also the economy. Uh moving to the next I will just you know browse through them. That's the infrastructure that I used to convince like local currencies instead of cards. I mean not instead like a complimentary payment method. Uh, I was explaining them what if the internet uh shuts down? What if you don't have power? Look, with localis you only need to have like a sticker with a QR code and you can pay like oh my god that's so cool. So that's >> what year was that? >> 2017. >> Yeah, to be more precise. Um, yeah. And then um 2015 uh had a crazy idea. I went to Isa European Space Agency with it. I wanted to build like a constellation of micro satellites uh um lift them in in the in the space uh somehow make them orbit international space station so they can better uh process data so we can connect to from earth to those to that constellation and we can earn money tokens >> yeah star something like starlink yeah good old days um the thing is that uh of course nothing happened with ISA European space agency however However, my my article um is now in the collectible area from uh Cointelegraph and you can actually buy it with as an NFT. So, I'm kind of proud of it. Moving to the next, in 2020, I won global legal hackathon in my hometown with um a friend of mine. uh she's a fashion designer and we came up with a solution to protect intellectual property for fashion designers because there's a really really at least in Romania uh with fashion designers and then pandemic came so no more fashion shows so moving to the next that's my I'm super proud of that as well um then in pandemics um I managed to convince like a digital signage company to showcase the first NFT in Romania so we can help local uh artists to continue their work so they can make money because in pand pandemic times you cannot have like uh uh art exhibitions. So uh we were the first to showcase like in NFD on public um digital signage and then uh for uh in Yash we have like the um industry in automotive is like super developed. So I managed to drive uh a Jaguar ipace. I managed to um know all the details inside of a Jaguar ipace. So I thought to myself, what if we can create a payment methods that you can put it inside a Jaguar and using OCP like the protocol to charge charging u to charge your car? What if you can translate and communicate with the charging station, you can pay itself? That was built in 2020 in Love View. If you guys know what Lab View is, it's a visual programming interface used by engineers. Drag and drop some functions, connect to them. So yeah, I didn't have like all the tech knowledge that I have right now. Moving to the next, I told you that I like space. So yeah, also build for IA like another project like blockchain back blackbox for Isa because they had a crash in 2020 with uh ve V vega uh launcher. So I thought to myself what if we can migrate from the idea of uh internet of things to the economy of things where uh smart sensor can communicate and uh put their data on chain. I went to them of course they ignored me as well. Stay with me. I have more just a few few uh projects. That's the the paper that I was talking with you guys with my with my faculty professor. We managed to create um um a system that allows you to create digital calibration systems on blockchain and also launched a helium balloon in in Stratosphere to create the first crypto transactions using the Raspberry Pi and bio banks. how I managed to create a system to put your uh human sims like blood um stem cells and um marrow for example and you can monetize them and also have a radio show back in my hometown talking about crypto hits the bit it's called also build for my kid uh her proprietary token so we can uh use it as as an incentive to read more for for school I'm the first Romanian guy that built um an exchange of course in love view as well back in the day 2013 and back to the uh original keynote. Uh now I'm into crypto investigation since 2024 doing this and now let's show you how it can be done. That's only a wallet that's transaction associated only to a wallet involved in the buy hack. Not sure if you can see it, but >> turn off the >> Yeah, >> you can turn off the source of the photons right there. Or I can throw a break in it. [laughter] >> Yeah, push them all. Push them all. Likeah, >> we can >> I have so many intrusive thoughts right now. Like, >> huh? >> Yeah. Boom. No, >> it's worse. It's worse. If we can just unplug it. >> This is how I died basically. That's the one. No, for sure. This one. >> There you go. >> Trust me, I'm an engineer. >> Yeah. So, uh, the bite be hack. I'm not going to u describe exactly how happened because in the yesterday panel there was a guy talking about it. But in the short terms like they we had like a compromised dev wallet uh initial Ethereum hack um um theft happened. We discovered like a lot of peel chain um transfers with um attackers trying to send teeny tiny amount of Ethereum to thousands of wallets. Of course they used uh mixers, tumblers, crosschain bridges and using um wallet clustering. We we saw that we do have a lot of infrastructure involved in this multiple chains and also multiple tokens and also multiple transactions and of course they had to make money. So they used offramp uh to uh centralize exchanges [snorts] and basically after mixing all these things together we found out I mean not we but the guy uh yeah uh basically Lazarus group as we all know uh they to blame for this hack. Yeah. question. If I would have done the hack, I will most probably send some points to Google and >> think about it. >> Yeah. >> Yeah. >> That was one of my initial reactions like are we sure or was it just attributed to them? >> Okay. So, it's I I don't think that's that's a proof because I would have done it. The I think the main >> the thing is that u um there are some uh flagged addresses involved in the past and we know for sure that they belong to Lazarus group >> because they use dormant addresses and you cannot um launder money like 1.46 billion >> and not using one of your already built um um address. >> Why why such a brilliant minds would use >> because they're the lazy. >> I I won't only there was a very small percentage of reuse. So convinced of the attribution. >> Yeah, exactly. >> Yeah, because they are small. >> There was a very small >> Yeah. Yeah. Yeah. Of course. Yeah, we can debate here. It's not a presentation. It's more like a debate. Yeah. >> In this world, we should let you present. >> Yeah. No, I know. >> That's the thing that we're struggling with. There are certain patterns that group use when they bring the cash out of tornado cash which is also quite evident. >> Okay. Okay. >> Yeah. So yeah why this matter because you know we're talking about 40,000 ETH and also demonstrate evolution of crypto attack vectors and also it act like a case study in advanced forensic investigation technique. I mean for me like having more than 20,000 24,000 addresses to play around it's like okay free playground for me and not for me but for investigatory uh community around here but let's break it down. So uh the methodology is like you know we got the alert uh we have the uh transaction exceeding established velocity thresholds uh the interaction with well-known um high-risk services like um the one involved in previous hacks and of course wallet addresses flagged for suspicious um activity or violation of or mixer usage and the technique of course there are so many but just three of them um used in analyzing this hack. Now transaction flow mapping uh of course advanced graph analysis to reconstruct the flow and the movement of of the of the token address clustering I was talking about earlier about it um to to create um to to to check the identity and uh attribute the identity to to an address and also behavioral pattern analysis. [cough] Excuse me. basically cross reference transaction patterns against noncriminal methodologies and the protocol that we are mostly using we have many phases but I'll just showcase few of them of course we have thread detection um basically that triggers the first the first uh the first sign and then we move to complex analysis tool that evaluates and uh the threat level and we have the investigation basically right uh when we trace all the funds within all the wallets uh chains uh tokens so on and so forth mixers tumblers and the next one of course the attribution analysis like that's really interesting because we need to use a lot of techniques protocols tooling so on and so forth also a thing that I like is to use oend techniques to investigate you know further And also OFAC since 2022 if I'm not mistaken introduced like uh you know crypto in their SDN so you can download for free and you can check it [clears throat] uh it's really interesting tool as well um a small parenthesis um I built a tool using the free chalysis uh Oracle smart contract you can check whether an address it's flagged or not in their system basically what they're doing they are downloading every single day if I'm not mistaken the full list and then they create like a transaction on their smart contract saying this address is flagged for X reason which is a really cool uh thing uh they it's um open source anybody can use it so I said why not using it for myself so I put it for the community as well it's for free of course we had to document everything create uh we we had to create all these small transaction up to the the most most complex one. Uh and basically our job is done here because the prosecutor can continue um with you know asset freezing protocols law international collaboration so on and and so forth. And now I'll show you the tools that I built. Um because after I took my certification as crypto forensic investigator I was like wait a second I think I can build this. That's my LinkedIn by the way you can scan it. Um I thought to myself I think I can build such a tool. Of course I build them at at certain level. Uh but it does what it has to do. So now I'll just connect with my I'll have um a hotspot with my phone because I don't like public Wi-Fi. Neither should you. And uh yeah, that's the list uh of uh transaction. I will be using like a few of them, the most uh the most used and see how uh I managed to create that ecosystem. So um you laugh here, but it's free to laugh. It just works. So at long it's not stupid if it works. You know, there's a saying. So, yeah, it's not stupid if it works. One second. So, I can't connect my my phone cuz I I kept it I kept it offline because I got a lot of messages. So, bear with me, please. Come on, dude. Connect. You know that moment I want to show you something cool, but it's not working. That's the moment that >> Why are you afraid of using the >> No, I'm not just afraid. I'm just paranoid. >> Okay. >> Yeah. >> Yeah. Yeah. Yeah. >> Come on, man. >> Public Wi-Fi is not great. >> Yeah. No, of course they're not. >> Mhm. >> Even with a VPN on public Wi-Fi, you can still punch around the VPN system. >> Yeah. But I do like I do like my privacy, you know. So, yeah. >> So, yeah, apparently it works. >> If I make Yeah. >> So, >> let's take I don't know >> one of those. >> I think we all know it >> communication with the payment provider or the exchange. >> You just signature. >> I like the interaction on even if the hacker gets the information he can only send what you want. Yeah, it would be tough. But there would be ways to like manipulate the call data going out. >> But he doesn't have >> the main issue is the DNS records. It's >> you can do a local DNS that forwards and then you can have that forward to an SSL certificate that is a strange letter in the name. And so the API that you're sending the transaction to or the place you're getting the information from would be at risk, but the actual transaction you're signing would be safe. It's the JavaScript libraries that you would load on the way that might be the problem. But it's not the SSL that's effect. It's the BNS that's >> no um way you'd hit a packet would be you'd hit it and rely on someone to blind signing like they just think that they're doing the right thing. Click okay. you change the address in that transaction. >> Oh yeah, >> it could. Yeah. >> Yeah. And that's what a lot of the hacks which happen to a lot of end users happen where they just no one reads the actual transaction. You just swipe out from that >> JavaScript that they're running on. >> Yeah, you have to swap the JavaScript, but you can't swap the JavaScript inside an SSL connection. You'd have to change the SSL endpoint by going to DNS. There was we can talk about it but there's a recent attack where they broke into your system and then changed Chrome where people are interacting with Chrome a lot and metamas not metamas phantom and they're able to do it that way >> there's [snorts] a whole chain of things >> you connected >> yeah right >> we hijacked the >> you hijacked right the the infrastructure >> it was wireless [laughter] >> yeah you wireless yeah uh it It's taking a little bit longer than expected for some reason of course. Let me just try again and select only the by bit hack because it detects the direct transaction um using multiple hops between um a specific address and checkex and the buy bit. Um let's try again. So basically what it does it checks all the transaction involved with this uh address and basically they will pop up right here >> the public API for this. >> Yeah but I'm now I'm working to create my own nodes so I can [snorts] because it's limited you know I'm using the free tire >> and you might be >> no no it it works but it takes a little bit longer because I put some um waiting times between the the checks also. Yeah. Uh it took like 40 seconds for me more or less to to check all transaction and to flag them the one that are tainted at least in theory. I mean it worked in the morning. Yeah, of course. I I triple checked everything >> because I'm paranoid. >> They blocked you. >> They blocked me, right? What do you want to talk about? Crypto? Nah. [laughter] >> No, >> it happens. No. Well, while we're waiting, maybe let's try. Huh? >> So vulnerability which then the one with it's not found directly they breached your Mac they took away your key saves they were then able to manipulate Chrome like it's complex >> you see the CD I'll find forensic password. >> Let me check. Maybe this one works. >> See, this one works. >> The infant. >> This one seems to be working. >> So, yeah, this works for some reason. This one's still thinking about it. So this tool basically what it does it create like a wallet uh screening. It brings you all the connected addresses using um um some interesting methods that I've seen online and I implemented here. And this is like um traditional um address clustering that you see right here. Basically it checks a pattern a time pattern volume pattern uh if it's automatic uh or not. It checks the entropy to see if there's a time interval between transaction, volume, amount, so on and so forth. Uh, and then it checks the total tokens that you have associated with this address. And of course u these are shitcoins. So you don't have like associated uh price for them. And then um it checks the the layering pattern in fun depending on the multitude of transactions uh the total of transaction associated with that and also of course you can save it as SV and then now you have it on this particular address we have only 19 transactions but we can check of course another one which has like a shitload of transactions. Um, let me check here. As you can see, 448. And of course, we have a lot of tokens here. 355. So, this cluster has like 355. They back back and forth, back and forth, back and forth. And the um the tool detected. And of course, yeah, it's it's a layered um uh pattern. And then if we for example click for I don't know a random one totally random one brings you to the ether scan and you can check the actual transaction and you can see the the the good stuff you know the really good stuff uh and then what it does look I'll show you another thing uh this tool basically that's the first thing that it does it checks uh the associated transaction and portfolio for that address but you can see the the the relationship between a given address and another one and it detects intermediary transactions for example look I will take I don't know this one for example so yeah there is one hop from this address and of course I can see the transaction I can click on it I can see the exact transaction that happened and as you can see it's flagged by the Ether scan. So, the tool works, but doesn't have the coolest interface ever. >> So, they >> Yeah, of course. Yeah. By the they had to when the BB bit released the uh the full address the full 24,000 addresses that are involved in the in the hack, they managed to to flag them, but up to from my testing up to hop number three from hop number five. No, you you don't see them as flagged as involved in a in a in a hack, which is like sad, you know, because you need to know it. Um, recently I applied to a Solana grant with a tool that detects um all the uh Solana address involved in the BB hack. So, I managed to pull uh 54 pages of transaction and they were not enough. The guy that won the grant had like 2,000 addresses. I have a >> but I didn't have time to maybe I would have >> I have a good friend a good friend that bought peerto-peer some Bitcoin at some point. >> I did the same way I did back in the days. I was meeting with the guy in in a coffee shop hotspot with my laptop and just email me the address and yeah I'm that old. So this is this is what the the tool does and the other one >> I'm sorry >> bit yeah this one is more like a rudimentary one but of course again it works let's let's check the first one address clustering traditional address clustering and of course you can see the amount time stamp uh and the associated um counter party and of course if detects a deck or a bridge but I can scroll 500 450 something a lot of transaction of course I'm limited by the free tire of the of the API but if I build my own which I will soon enough this limit will won't exist uh anymore so yeah it's really important for the uh community to to know that um there is there are tools that can help you out before the hit the fan, you know. Uh, this one is still is so annoying. It should work this one because that one is really interesting. Let's click on it by hack. Yeah, but uh this one so I built it for um Binance sorry for Ethereum, Bitcoin, Binance, Polygon and base and from that point uh there was a grant uh on Solana Foundation. So, one of these tools I migrated to Solana. Um, yeah. So, and I made it open source for the for the community because at this point there's no open source [snorts] tool to help you investigate Sorana hacks. Of course, there are some limitation, but they all you they all charge you like premium tire to offer you more details about a Sana um detail. Oh, look. Oh, it works now. You son of a gun. No, no, this one is No, sorry. It's still not working. >> Need to call your DevOps engine now. >> No. >> Mhm. No. For some reason, honestly, I don't know why because, you know, fully connected and I double triple checked. But yeah, these are one of my uh three of my tools that I built um in the span of uh eight months or so. Yeah, more or less. More or less. But uh yeah my my step my next steps is to um of course I have an ongoing discussion with a lot of companies, [snorts] law enforcement agencies, lawyers, prosecutors and to try to create like something national or international or at European level that can help uh tackle this this thing called infrastructure stupid. Yeah, not working for some reason. But this works, which is good. >> Uh, yeah, perhaps you can also try to change the network. Perhaps on the public network. >> No, I'm fine. >> Trying to get him onto the public. >> I I prefer for the public network. [laughter] >> No, I'm not buying it. Not buying. Sorry. But we can have one to one call and Yeah, of course. We we have still 15 minutes uh left. So >> we can have like Q&A or maybe I can show you No, it's okay. I'm fine. I can show you the um um the exchange that I built in lab view. >> Yeah, it shows all open source. So >> the no no only the Solana one. >> Only the Solana one. This one I intend to make them um as a as a SAS or something like that. What do I want to start here? I want to start [sighs] >> the exchange. >> Oh, the exchange. Yeah. Yeah. So, it's built on lab view 11 that works on a when I used to Which one is it? Yuka. This one. I'm not sure exactly which one is it. I think I have it. I think Yuka was it. No, that's a Linux one. Sorry. No, no, no. Oh, shut up. >> Fast. And not this one. >> It was the other one, of course. >> View is for cards, right? >> Yeah. >> Yeah. Yeah. We I used to >> sensors. >> I'm sorry. What sensors are you? >> No. The thing here No, no. The thing is that at the time in 2013 when I in Google Windows 7 in um Yeah. Don't laugh. It works. The thing is that uh Yeah. No, no. The thing is that I had that uh license uh on Windows 7. So I had to migrate it all over places because you know and the license is like $7,000 or so. So I have it from faculty. So yeah, you know, uh yeah, let's start this one and then uh so you can see here the time stamp, right? 2013. >> Pretty old. And we have Come on, dude. Yes. So now, are you ready to >> So this exchange is working? >> No. used to work back in the days 2013 when nothing >> worked. So this started as more like a like as a joke with a friend of mine that used to mine Litecoins and he was like, "Yeah, I'm mining Litecoin. So cool." Well, and how much do you do you lose on transaction fees because he was using like an an American Express card and US-based exchange? I was like 19%. I like dude, you're crazy. How? What the hell? So, I was working in in the industry in the hosting and domains like what if I can build your website? Would you trust me to sell you? Nah, you cannot do. It's an exchange. Forget about it. Do you Okay, you know what? Let's do it. So, yeah, I built it because love View offers um web component. So, uh yes, that's the interface. >> Yeah, >> that's the interface. So I was manually first at the at at the first I put it manually and then I upgraded. So that's the whole code. So basically drag and yeah drag and drop functions stupid you know and here wait a second come on man here like that. So I was using BTCE because we didn't have like Romanian lay versus Litecoin. So, I had to uh use the BTC for the Litecoin versus uh dollar and then kener.info our Romanian uh API to to check this and then of course the mount go as you can see. >> Yeah. >> Do you remember right Mount Gaus and then of course ah and I asked him dude if I can uh sell your litecoins with 9% profit are you okay? Yeah I'm fine. So okay fine by me. So yeah, you'll see here uh 9% for selling and 6% when you buy. See 9%. >> Yeah. >> And 6% here. So it was like a freaking uh uh so I built the site was built in WordPress. >> So when you wanted to use it for instance, this was the final layout. >> No, no, no. There was a web interface with uh yeah web interface when you could >> So you don't have that anymore. >> No, not here. No, no, no. I have it back home. But that's more interesting that the freaking it was basically like a form. >> It was just >> just like this actually, right? >> No, this wasn't put online. I was using it offline. So I would received uh a form a request people saying I want I have I don't know 55 Litecoins. Okay. >> And in in a span of uh 24 hours, he will receive the the quotation. So I can I can buy you the 55 Litecoin for that amount of time uh money. And then he will reply, "Yeah, I'm fine." And then I was using this. I made some >> Oh, >> so rudimentary, man. We're talking about 2013 >> one guy. >> I used to use Excel. it could be replaced by email conversation actually. Yeah, but uh when you have like volume so I had to it was hard for me to check ben info and then BTC put all the transaction all the so like maybe I can automate this so now it's not working if I can run this the script but see so compa which is buy and then vinde which is sell >> and then I managed to do it on on bitcoin as well but on the the manual one I can show you because it's much more interesting oh not this one sorry uh which was Uh this one. So that's the manual one, I guess. >> Okay. >> No, this is not the manual one. Which is man? Uh because I was I want to show you how I was manually typing the um I think automatic. Oh, these are all automatics. H I think this is one. Anyways, uh Oh, this one. Yeah, that's the one. So, when I run the the the program, I knew for sure. I do I do remember $4 and that was like 325 if I'm not mistaken. and then automatically pops up all the the information that I need and you basically that the information I was getting from the form from the online form for example I have I know a,000 RON and that's my profit all the profit was uh of course in litecoins not in Romania or dollars and that's the first exchange ever in Romania for litecoins and when you are selling bit um litecoin the same thing how many litecoins do you want to sell I don't for example, 57 and then the conversion of course applied with my fee. So that's the profit I was making. So yeah, that's the first uh crypto exchange. >> I really wish you could still make a 9% profit. [laughter] >> Yeah. Yeah. >> Actually actually if you know the Bitcoin uh machines, they are still doing >> the ATMs. >> The ATMs. >> Yeah, I know. But they are extensively used in launder money, you know. >> Yeah. >> Integrative. >> All right. >> We can make 9. I'm asking for [laughter] >> and if we're still here and we still have few minutes left. Um, what else? Isa the Vega launcher. want to see it >> if we still have time. I guess seven minutes or so. >> Let me quick question. >> Yeah, sure. Like >> blockless we find to be super ineffective because they used by the other side as well. >> I'm so I'm sorry. >> With block list, we found they're quite ineffective because if you've got an open block list, DPRK download it and ship fun really quickly. >> What are your thoughts on a way that could be used outside of that? Like a way for the industry to protect itself. just make out. >> It's really interesting. Never thought about it honestly. >> Yeah, it's just something that we see being from our side at least, you can just tell them swap in all the addresses because they run a script again to do a block list addresses and transfer everything out of those addresses and keep going. >> So, I think it was using localism. Oh yeah, that's my local currency localist, but I was using that infrastructure to work with this. So basically what it does uh let's see if it runs. So does it run? Oh, so basically everything uh the hit the fan at minute uh 10. So basically I'm now emulating the flight sequence when first stage um you know uh they had the separation for first stage second stage third stage and this stage was built by u AIO an Italian company and what they did because they they were building it in the in the pandemic times they switch cables man left with right and when the the rocket managed to insert itself on the orbit the flight computer said okay now Right. Mhm. Left. No, no, no. Right. No, left. And the rocket tumbled itself and exploded. So that's that this is why I was like, what if we can have like that? No. So this is why these are basically uh signals from uh separation stages embedded into into blockchain, you know. So that's the the whole idea was um and abort mission and I'm I think that was with Localis. I'm not sure exactly but don't remember honestly. today 128 not localis I have many tokens one second so I can show exactly what I what I mean localis or stee it maybe I I didn't had I didn't plan it to to use it so I have to remember exactly which token I used back in or maybe moodcoin maybe I have so many oh now you can see the the moodcoin I was telling you about that failed startup the moodcoin Yeah, that's the smiley face. Basically, you can change the uh yeah, all the color. Uh let me check again to run it again. Nothing. Which one man is that? It's supposed to have a transaction right here, but again, it's not working for some reason. Nothing. It's not this one. No, I think it's Vega, man. That's the automatic one. Which one is it? 7 August. No, 26 February. I don't remember exactly which one is it. Come on, man. For some reason, again, it's not working. [snorts] But um yeah, that was like an implementation. Um I think we're done here. >> Almost done. Yeah. >> Thank you. [applause] >> Yeah. Liftoff. Yeah, liftoff. Exactly. Yeah. Not sure why this not working, but yeah. I think we have another one at noon, right? >> Yep. >> We have another one here at noon. >> Full second. >> Full sec. Yeah. >> Okay. Yeah, we can of course continue the conversation in private. Uh I'm not sure exactly which one was it here, but uh yeah, at least I managed to show you the the first crypto exchange built in lab view. I'll shut it down now. Thank you for patience and for coming here. Although I know it's super early in the morning still. And yeah, maybe we can connect on LinkedIn and continue conversation online or maybe we can see each other next year, right? And basically >> came from Yash, right? >> Yeah, from Yash. I had to uh mean I I wanted to go to um Trade Sylvania. So I was like back and forth, back and forth, back and forth. Half a day at Tech Sylvania, half a day here. Half a day at Tech Sylvania, half a day here. >> So it was like a marathon for me, you know. >> But it was cool. I managed to um put a face on a name for a lot of people that I knew only from the online interactions. >> Yeah. Thank you. >> Thank you.