Yajin (Andy) Zhou
@yajinzhou
Co-Founder @BlockSecTeam | Professor at Zhejiang University | Views are my own | @yajinzhou_cn https://blocksec.com | https://www.linkedin.com/in/yajin/
The submission deadline for ACM CCS Workshop on Decentralized Finance and Security (DeFi'25) was extended to July 28th, 2025 (AoE). Submissions are welcome :) defiwork.shop
Less than one week left -> Best DeFi Papers Award 2024 – Call for Nominations! July 1 – Nominations open July 21 – Nominations close Aug 20 – Recipients notified We honor research advancing Decentralized Finance across: * Track A: Best Theoretical Paper * Track B: Best…
Phalcon Explorer supports HyperEVM now @HyperliquidX You can see the call trace of HyperEVM to understand the transaction. A simple transaction: app.blocksec.com/explorer/tx/hy…
Friday night is hack night. 🧪🕵️♂️ Let’s analyze an attack (happened a couple of hours ago) no one really talks about. app.blocksec.com/explorer/tx/bs…
After the closure of the Infini @0xinfini and Hope cards, finding a usable U-card has become quite a headache. What I care about most is simple: a card that works in as many places as possible, especially with a high online payment success rate. Some friends often ask me, why…

After communicating with the CYBER team @BuildOnCyber, I’ve learned that the Safe wallet (0x36f405d5f2a228b755cfb5191fcb0eba1b55f497) was added as the admin of the VTVLVesting contract (0x250ec28205Ec468D9474226C62F005Ba8A708Afb — created by bbshark.eth) because the CYBER team…
1/ I believe that one of them—Andy Bell (bbshark.eth in the table)—was employed by @BuildOnCyber. Below is the information I’ve gathered.
Best DeFi Papers Award 2024 – Call for Nominations! We honor research advancing Decentralized Finance across: * Track A: Best Theoretical Paper * Track B: Best Practical Paper * Track C: Best Industry Paper For the nominations aim for industry track, one of the authors should…
Join us at DeFi’25: Workshop on Decentralized Finance & Security, Co-located with ACM CCS 2025 on October 17, 2025. Submission deadline: July 21, 2025 (AoE) Thanks to our incredible program committee & chairs for making this happen: @yaish_aviv @christoftorres @alexcryptan…
A hack in the weekend: app.blocksec.com/explorer/tx/bs… around 204k loss
1/ Multiple projects tied to Pepe creator Matt Furie & ChainSaw as well as another project Favrr were exploited in the past week which resulted in ~$1M stolen My analysis links both attacks to the same cluster of DPRK IT workers who were likely accidentally hired as developers.
Highly recommend reading this deep dive: 👉 globalchinapulse.net/moving-bricks-… Stay vigilant.
“Moving Bricks”: Inside the Scam Industry’s Secret Logistics Network 1/ Imagine you send your life savings to what you think is a safe investment. Ten minutes later, that money is split into dozens of smaller transfers, wired across continents, converted into crypto, and gone…