Cos(余弦)😶‍🌫️
@evilcos
Founder of @SlowMist_Team. Creator of https://t.co/tFCQExsAlL // 分身一号/捉虫大师/救火运动员 🕖灾备 https://t.co/bMGdsBlwmk
1.5K Following    116.6K Followers
Please avoid accessing all the Puffer apps and social media; we are investigating the issue. @puffer_finance
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We’re excited to announce that the Crypto Asset Tracing Handbook is finally here! 🎉 It’s not a dense research paper or a highly technical manual — our goal is to present clear, practical guidance to help more people: ✅Understand the basic framework of on-chain tracing ✅Learn how to use tracing tools ✅Build better judgment & response skills when facing on-chain risks 🤔Many people think: “Crypto assets are on-chain, every tx is public — recovering funds should be easy, right?” 🙅Not quite. Visibility is only the first step — recoverability is a whole different challenge. Even if you can see the fund flow clearly, you might still have no way to freeze or recover the assets. That’s why we believe on-chain tracing basics should not be an exclusive skill for security researchers or hackers — it should be essential knowledge for everyone in the crypto ecosystem. 📖GitHub Version: https://t.co/yizPo1b2Ks 📖PDF Version: https://t.co/C5E9pCzX0Y
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🚨Attackers often distribute malicious files through #LinkedIn#, #Discord#, and #Telegram#. To stay safe, here are key tips 🛡️: 🔹 Beware of fake jobs asking you to run code from GitHub. Verify identities via official sites. 🔹 Always review unknown code & authors. Use VMs/sandboxes for testing. 🔹 Disable auto-downloads in chat apps. Scan files before opening. 🔹 Enable MFA and regularly update strong, unique passwords 🔗Read more: https://t.co/WOWgbEgeqA
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🚨 A fake Ledger scam is making waves again - but it’s not new 🚨 🧵 This phishing dates back to 2021. Victims receive a fake Ledger device in the mail - complete with real-looking packaging and an “official” letter. You’re told to migrate your 24 words from your “old” (real) Ledger to this new (fake) one. 🪤The scam exploits user data from past breaches - name, email and address. You’re told: “Your old device is compromised. Enter your seed phrase into this new secure one.” Once entered - all assets are gone. The fake Ledger is preloaded with malware. 🎭These scams often include: 🔹 Fake user manuals 🔹 Fake “Ledger” software 🔹 Realistic device designs Some variants even use preset recovery phrases, tricking users into using a wallet the attacker already controls. 📦 Such attacks do work - especially when: 🔹Your order info was leaked 🔹You fall for fake stores or phishing sites selling counterfeit hardware wallets 🔹Your Low awareness around device authenticity checks 🧠These attacks may seem “too physical to scale” - but they don’t need to succeed often. It’s a spray-and-pray model. No confirmed cases of tampering during delivery - but don’t risk it.⚠️ 🎯See recap: 🔍 Ledger’s breach: https://t.co/2XaC94QRV1 🔍 Trezor leak: https://t.co/djm36qxo5u 🔍 Fake imKey cases: https://t.co/Y1MVhWcCoT 🔐 How to protect yourself? ✅ Only enter your 24 words on a device you initialized 🚫 Never trust devices from unknown sources ✅ Always verify authenticity via the official brand website 🚫 Don’t fall for unsolicited packages, emails, or “support” messages 📚 Knowledge = prevention. We maintain a public archive of real-world blockchain hacks, just search by keyword or project name to see if there’s a history of breaches or fraud: 🔎 https://t.co/e90CSvTm6B 🧱 Security starts with verifying the hardware you trust. Stay safe. 🔒 cc @evilcos
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🚨SlowMist Scam Alert🚨 We’ve received reports of fake Telegram groups impersonating #SlowMist# and scamming users via phishing investment links. One example: ❌t[.]me/slowmist1 — this is NOT us.‼️ ✅ Please report such groups to Telegram immediately. For your safety, always refer to our official channels: 1⃣Website: https://t.co/IO2VWk2pae 2⃣X: @SlowMist_Team & @MistTrack_io 3⃣Email: team@slowmist.com If in doubt, feel free to DM us directly. ⚠️Stay vigilant and verify before you trust.
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🔥We’re excited to share — MistTrack MCP is now live for testing! You can now use natural language in #Claude#, #Cursor#, and other MCP-supported clients to access MistTrack’s on-chain analysis APIs. 💪This makes blockchain tracing, risk evaluation, and fund flow analysis more efficient and accessible than ever. 🕵️We’d love for all MistTrackers and curious friends to try it out! 🔗https://t.co/qmqTjAn9X8 #MistTrack# #MCP# #BlockchainSecurity# #AI# #Web3#
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🔥A Must read for anyone in the crypto ecosystem ⚠️BEFORE you get hacked/drained or ⚠️BEFORE it happens again !! Written by @evilcos not me just giving exposure it deserves https://t.co/ANVI0ignVF https://t.co/FHU4AaN2aL
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🚨 Do not use Curve Finance frontend until further notice. https://t.co/2sxa5tPYLO
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🔥Solana Smart Contract Security Best Practices is back with a major update!🚀 Since its release, the Solana Smart Contract Security Best Practices has received positive feedback from the community, with many developers and security researchers endorsing and recommending the guide. Based on the latest SlowMist audit experience, we've extensively enhanced the guide to provide comprehensive security solutions for developers within the Solana ecosystem. This update covers vulnerability descriptions, attack scenarios, and fix recommendations. 👀Read the full update on GitHub: https://t.co/2hVMeo7rHo #Solana# #SmartContractSecurity# #BlockchainSecurity# #audit#
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🚨SlowMist Security Alert🚨 A user lost over $20K after visiting a fake @ChangeNOW_io site. 📌Notice the letter “e” in Pic 1? It’s a #Punycode# attack — a trick we’ve covered in the blockchain dark forest selfguard handbook(Pic 2). ⚠️Beware of browser recommendations — they may suggest phishing sites. Always verify URLs from multiple sources. Here’s a simple way to find the correct official site: 1️⃣ X Verification Users often rely on the website link shown in a project’s official X account. But don’t trust it blindly — always check the account’s follower count, verification badge, and registration date.⚠️These can be faked. So don’t stop here — proceed to cross-verify. 2️⃣ Cross-Verification Use trusted platforms like @DefiLlama, @coingecko, or @CoinMarketCap to confirm the domain matches the one on X. 3️⃣ Bookmark It 🛡️For more attack patterns and security tips, check out the blockchain dark forest selfguard handbook: https://t.co/v6lrUYgrI9 Stay vigilant! #Phishing# #CryptoSecurity# #Web3#
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🚨 Ethereum's Pectra upgrade (EIP-7702) is live — a major leap forward, but new functionality brings new risks. Here’s what users, wallet providers, developers, and exchanges should watch out for: 🧠 🛡️ For Users: ✅Private key protection should always be a priority. ✅Be aware that the same contract address on different chains may not always have the same contract code. ✅Understand the details of the delegated target before proceeding. 🔍 For Wallet providers: ✅Check if the chain of the delegation matches the current network. ✅Warn users about the risks of delegations signed with a chainID of 0 that could be replayed across different chains. ✅Display the target contract when users sign delegations to reduce the risk of phishing attacks. 🧑‍💻 For Developers: ✅Ensure permission checks are performed during wallet initialization (e.g., via ecrecover to verify the signing address). ✅Follow the Namespace Formula proposed in ERC-7201 to mitigate storage conflicts. ✅Don't assume that tx.origin will always be an EOA, using msg.sender == tx.origin as a defense against reentrancy attacks will no longer be effective. ✅Ensure that the target contract for the user’s delegation implements the necessary callback functions to ensure compatibility with mainstream tokens. 🏦 For CEXs: ✅Run trace checks on deposits to mitigate the risk of fake deposits from smart contracts. 📚 Full best practices & in-depth analysis: https://t.co/IvphpT07rA
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Hey MistTrackers🕵️‍♀️, Here’s our latest tutorial!📺 🌟Since its launch in 2022, MistTrack has attracted over 100,000 users — including tens of thousands of paid users — making it an indispensable compliance tool in the crypto industry.🛡️ 📊 MistTrack has accumulated: 🔹 1K+ Address Entities 🔹 300M+ Addresses Labeled 🔹 500K+ Threat Intelligence Addresses 🔹 90M+ Risky Addresses Identified 🔍 MistTrack currently supports 17 blockchain networks, including: #Bitcoin#, #Ethereum#, #BSC#, #TRON#, #Polygon#, #IoTeX#, #Avalanche#, #ArbitrumOne#, #OPTIMISM#, #Base#, #zkSyncEra#, #MerlinChain#, #Toncoin#, #Litecoin#, #Dogecoin#, #BitcoinCash# and #Solana#. 🎯 It also supports Cross-chain Parsing Analysis for deeper investigation across ecosystems. 🧪 Try MistTrack FREE for 30 days at: 👉 https://t.co/35HJ4rHom0 📼 https://t.co/4xpcfzmwhy
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Highly recommend everyone to read the Blockchain Dark Forest Selfguard Handbook produced by @SlowMist_Team team. The best reading to save your assets from hackers' hands in crypto. https://t.co/LRJJJy44yA supports 6 languages, and will continue to update! Be safe, be successful ! 熟读《web3 黑暗森林》, 才能沐浴在区块链阳光之下. https://t.co/LRJJJy44yA 谢谢余大 @evilcos 寄的 “web3安全圣经”,还记得同样去年的五一左右,同样的雨季,被盗了几万U的我无助的找到余老师,进而深度了解到黑皮书,果断参与一起翻译韩语版,这样伟大的东西太值得传播! 要把它放在办公桌最显眼的地方时刻提醒自己,妈妈再也不用担心我被盗了 https://t.co/LRJJJy44yA 支持6种语言,持续更新中...
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🚨SlowMist Security Alert🚨 The root cause of the @th3r0ar exploit was the presence of a backdoor in the contract During deployment, the R0ARStaking contract altered the balance (user.amount) of a specified address by directly modifying storage slots. Subsequently, the attacker extracted all funds from the contract through an emergency withdrawal function. https://t.co/3G0Z1GTjt6
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🚨SlowMist Security Alert🚨 @zksync security team has identified a compromised admin account that took control of ~$5M worth of ZK tokens — the remaining unclaimed tokens from the ZKsync airdrop. 🧾 Related Address: 0xb1027ed67f89c9f588e097f70807163fec1005d3 As always, stay vigilant!
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🔗 MCP tools are crucial bridges between AI models and external systems, but bring security risks. 🛡️ SlowMist released an "MCP Security Checklist" covering Host, Client, Server layers and crypto scenarios to help safely integrate blockchain and AI. 🤖💰
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