Security engineer @CertiK | Prev. MetaTrustLabs, CertiK | on-chain hack analysis | Saved $200K tokens from a CEX hack

Blockchain
Joined February 2010
Daniel Tan retweeted
#LedgerReseller exploit. In Oct 2026, users who bought Ledger hardware from Southeast Asian reseller #CryptoBilis were hacked and lost $93M due to a hardware supply chain attack that monitored the users' hardware wallet’s screen with a malicious implant xitter.cf/Ledger/status/21098967…
Update from Ledger Donjon on the CryptoBilis investigation 🔽 @DonjonLedger is investigating Ledger signers sold by CryptoBilis, a reseller in Southeast Asia, that contained an unauthorized hardware implant. Ledger confirmed this on October 10th for one affected user's signer. All confirmed fund losses tied to the incident disclosed on October 9th involve signers sold through CryptoBilis. We have not verified a drain linked to a signer bought elsewhere. CryptoBilis has confirmed it stopped selling Ledger signers while the investigation continues. Based on the Donjon's analysis of the attack, the implant sits inside the enclosure and reads the data shown on the screen. During setup, the signer displays the 24-word recovery phrase. When the implant detects these screens, its microcontroller decodes the words and transmits them over LTE using a provisioned eSIM. The implant is a separate component. It does not modify the Secure Element or the Ledger operating system, and it does not alter transactions or signatures. The Donjon will analyze the signers it receives and will share more as the investigation continues. We have not confirmed the total number of affected users or the total value lost. Figures circulating online come from third parties and Ledger has not fully verified them. If your funds were drained and you have not contacted us, please do so through Ledger Support so we can include your case. We are also reviewing reports of implants in other signers and locations. We will continue to share information as the investigation progresses. Rest assured the Ledger team is going above and beyond to leave no stone unturned to investigate this situation to the strongest possible outcome. If you bought a Ledger signer from CryptoBilis and have not set it up, do not set it up and contact Ledger Support. If you have set it up, transfer your assets promptly to a new signer with a new recovery phrase. Do not enter or restore any recovery phrase on a signer bought from CryptoBilis. Never enter your recovery phrase into a website, app or form. If you lost funds or hold a tampered signer, contact Ledger Support at support.ledger.com and file a report with local law enforcement. Do not send the signer to anyone before speaking with Ledger Support or local law enforcement. If you lost funds, coordinate with law enforcement before opening the signer. Researchers and others with relevant information can write to [email protected]. If you did not buy from CryptoBilis and want to inspect the inside of your signer, the guide is at support.ledger.com/article/4…. Use caution and make sure your recovery phrase is backed up first, because opening a signer can damage it. Ledger will never call you, message you directly, or ask for your 24-word recovery phrase. We will update this post when we verify new information.
1
51
Daniel Tan retweeted
#CertiKStatsAlert 🚨 @DriftProtocol seems to be a victim of an exploit for ~$136M losses. Funds are currently being laundered or moved. ~$109M in wallet 7RoMqGAcU7S6ESAhPDvB9iSXvASUhuoE8u7dYRxGBew9 solscan.io/account/7RoMqGAcU… Stay vigilant!
6
15
2
26
6,590
Daniel Tan retweeted
We have 3 paper on Web3 Security will be presented during ASE 2025. FaultSeeker: LLM-Empowered Framework for Blockchain Transaction Fault Localization - A LLM empowered framework helping efficiently identify the victim contract and vulnerable function in an attack transaction
1
2
1
5
934
Daniel Tan retweeted
Shockwaves in Crypto:Security Breaches Result in Multi-Million Dollar Losses – Industry Experts Weigh In on Prevention Strategies! xitter.cf/i/spaces/1RDGlllqRmgGL 🗓️ Time: June 20th 8:00 PM (SGT) 🙋‍♂️ Guests: @LBank_Exchange @EXVULSEC @CoinUpOfficials @MetaTrustLabs @CoralFinance_CN
8
1
13
2,347
To check you don't have the malicious library cached, go to cdn.jsdelivr.net/npm/@ledger…… and ensure the version is 1.1.8. If not, clear your cache. chrome- F12> Chrome Developer Tools > Application tab > Storage in left tree> Clear site data. xitter.cf/Mudit__Gupta/status/17…
The ledger issue is now fixed. To make sure you don't have the malicious library cached, go to cdn.jsdelivr.net/npm/@ledger… and ensure the version is 1.1.8. If it's not, clear your cache. chrome- F12> Chrome Developer Tools > Application tab > Storage in left tree> Clear site data.
1
2
1
1,273
On 2023-11-21, the Atomicals Market trading platform @atomicalsmarket experienced users' asset loss incident that has thrown Atomicals Protocol @atomicalsxyz and Atomicals Market, into a storm recently. 1/N
1
2
632
#MetaTrustAlert #AAVE plan to stable rate mode for all assets on the v2 and v3 instances where it is active, after received a bug report. The bug is not disclosed due to there are many protocols fork AAVA, which implies that any AAVA fork protocol is better to take the same response.
1
1
1
1
1,198
Official results are out! Congratulations to @Offside_Labs, @kalos_security, and @ChainLight_io for securing their position in the Top 3, as well as everyone else who participated! Additionally, special thanks (in alphabetical order) to @ChainLight_io, @cmichelio, @osec_io, @SupremacyHQ, and @zellic_io for guest authoring challenges this year. If you're interested in guest authoring a challenge for next year, please reach out.
5
22
13
175
104,078
📣 #StarsArena 被攻击之后 拆解 #FriendTech 和其仿盘们,谁能扛起社交赛道大旗? 🤳关注 @Cointime_CN 周五晚8点半Space(UTC+8),拿好子弹,备战SocialFi热潮。 👉Space链接:xitter.cf/i/spaces/1vOGwjbEVDPKB @FairyproofT @CSpaceOfficial @MetaTrustLabs @ABCDELabs @0xmasiwei @relationlabs
2
4
2
11
4,074
《专家分析——“我们的两亿美元去哪了”》 老OG背书,知名大V入股,Mixin Network折戟云服务商? 👉Space链接:xitter.cf/i/spaces/1mnGepy… @FairyproofT @CertiK @MetaTrustLabs @Beosin_com @liu_lu33569 @CryptoCat11 @CertiKCommunity @DanielSlothx
5
4
7
14
6,275
Replying to @MetaTrustLabs
👏👏👏 Kudos to the TOP 3 teams of 2023 MetaTrust Web3 Security CTF Competition! You have impressed us with your works. Hope we can keep exploring and BUIDL together in the Web3 security industry. #MetaTrust #CTF #Web3 #Security
1
264
Daniel Tan retweeted
#Japan's nuclear-contaminated water discharge threatens global marine ecosystem: Experts
37
145
11
266
49,504
1/ Was Arbitrum One down for an hour? No Did the batch poster stop posting for an hour? Yes What does this all mean? 🧵
17
52
32
234
96,203
Replying to @ai_avalanche
@steadefi A widely-known way to mitigate the private key leakage risk is the usage of multi-signature.
#MetaTrustAlert @steadefi on #Arbitrum and #Avalanche was exploited with a total loss of $1,140,000. The owner of all the vaults has been compromised and is transferred to an attacker's wallet (0x9cf71). The attacker invoked privileged functions to gain all borrowable assets on both Arbitrum and Avalanche, then swapped them into ETH and bridged ETH to Ethereum. The wallet on Ethereum now holds 624 $ETH($1.14m value).
1
78
The worst thing about the Curve hack is this is not something a typical researcher would have looked for, they dug *deep* in our release history to find an exploitable issue for a large protocol with many millions at stake This took a significant amount of time to identify
41
187
54
805
394,808
Daniel Tan retweeted
GM Derps 😀 The moment we've all been waiting for is here! 🎉 DerpDEX Beta Mainnet is LIVE on @zksync ! 🥳 👀 Read more here : mirror.xyz/0x44776D7E55e9D45… 😜 Let's #DerpingToTheMoon together!
241
5,847
3,161
5,908
116,727
For projects like @TornadoCash and similar ones, the governance attack should be considered a lesson to strengthen their governance processes and security mechanisms cointime.com/news/who-will-b… #MetaTrust #web3 #blockchain #attact #security #crypto #DeFi
2
1
1
261
Daniel Tan retweeted
2/ 首先,一般的开源项目不带node_modules。但是黑客将node_modules也上传到了github,然后把钓鱼脚本嵌入其中。 用户检查运行的脚本并不能找到问题,检查依赖的包才能发现,非常隐蔽。
4
3
1
26
Join us with @CSpaceOfficial for an inspiring Twitter Space discussion on #GameFi & Security on May 18 9pm. We'll be talking with @Gmatrixs1 and @StarryNift about security insights in Gaming. 🎮 Don't forget to set remind👇 xitter.cf/i/spaces/1MYGNgdPQNoJw #MetaTrust #Web3
2
2
3
2,718