# 0x22 Web3 Security Bulletin *Crypto and web3 security insights, including tools, hacks, and regulations. * By [W3SB](https://paragraph.com/@w3sb) · 2026-02-27 web3, security, cybersecurity, hacks, crypto, regulations --- ### TL;DR * Mimna Kelkar argues today’s trillion‑dollar crypto stack needs a first‑principles security redesign, not more band‑aids. * Buterin lays out a quantum‑safe roadmap for Ethereum and redefines security as tight intent alignment. Check out my key takeaways, which are practical across cybersecurity domains. * Mark Karpelès warns a fully quantum‑resistant Bitcoin upgrade is “virtually impossible” without global coordination. * Get educated - Larry Cermak (@lawmaster) launches "How Crypto Actually Works: The Missing Manual“ 15 chapters covering the nuts and bolts of chains, DeFi, and MEV. * 0xJeff maps out Web3’s shift from mixers and privacy coins to Privacy 2.0 infrastructure aimed at real‑world compliant but confidential solutions. * @ZachXBT accuses Axiom staff of abusing internal dashboards to track user wallets and front‑run traders. * Tsuchiya from Halborn describes how a bridge key compromise and large‑scale address poisoning turn basic ops mistakes into multimillion‑dollar losses. Insightful ========== **Rethinking Crypto Security from First Principles** Mimna Kelkar calls for a holistic, first-principles redesign of blockchain security protocols amid trillion-dollar ecosystems vulnerable to encumbrance attacks exploiting gaps in proof-of-knowledge systems. He argues that current approaches are flawed and that we need broader approaches to defining security. [![](https://paragraph.com/editor/youtube/play.png)](https://www.youtube.com/watch?v=ncp3VYC_8ow) Proofs of complete knowledge, alongside whistleblowing mechanisms, trusted hardware, MPC, and smart contracts, offer partial mitigations, though each carries soft assumptions like non-collusion or trusted setups that demand scrutiny. ([a16z Crypto](https://a16zcrypto.com/posts/videos/rethinking-crypto-attacker-models/)) **Vitalik Lays Out the Quantum Roadmap for ETH** Buterin outlines a phased roadmap to harden Ethereum against future quantum attacks across consensus, data availability, wallets, and application proofs. Consensus-layer BLS signatures are slated to be replaced by hash-based schemes aggregated via STARKs, with careful selection of a long‑term hash function such as Poseidon variants or BLAKE3. Data availability may migrate from KZG commitments to STARKs and PeerDAS, trading some complexity for manageable quantum safety. Followed by ideas on using EIP‑8141’s native account abstraction and protocol-layer recursive signatures and proof aggregation. ([Vitalik on X](https://x.com/VitalikButerin/status/2027075026378543132?s=20)) **And More... Vitalik Redefines Security as Intent Alignment** To minimize divergence between user intent and system behavior, good security solutions rely on redundancy through multiple overlapping specifications that align with user intent. My key takeaways: 1. Security solutions should prioritize balance between ease of use and risk mitigation. 2. LLMs can be a useful tool for approximating user intent but should not be relied upon as sole determiners. 3. Multiple specifications are necessary to accurately capture human intent, especially in complex scenarios. 4. Redundancy is essential for security, allowing systems to approach user intent from different angles. 5. Security solutions must consider the trade-offs between user experience and risk mitigation. ([Vitalik on X](https://x.com/VitalikButerin/status/2025653045414273438)) **Quantum Upgrade "Virtually Impossible" for Bitcoin** Ex–Mt. Gox CEO Mark Karpelès: a full quantum-resistant upgrade for Bitcoin is virtually impossible because it would require global consensus and coordinated hard forks. ([U Today](https://u.today/complete-quantum-upgrade-virtually-impossible-former-mt-gox-ceo-warns)) **Open‑Source Guide Demystifies Crypto Mechanics** [@lawmaster](https://x.com/lawmaster) launches "How Crypto Actually Works: The Missing Manual," released on GitHub spanning 15 chapters on core blockchain topics. It covers Bitcoin fundamentals, Ethereum and Solana architectures, DeFi protocols, MEV dynamics, market structures, custody solutions, and emerging concerns like quantum resistance. ([Larry Cermak on GitHub](https://github.com/lawmaster10/howcryptoworksbook)) **The Evolution of Web3 Privacy** [0xJeff](https://substack.com/@defi0xjeff) maps out how blockchain’s “public by default” design clashes with real-world privacy expectations and traces the evolution from early mixers and privacy coins to today’s Privacy 2.0 infrastructure. The piece explains key concepts like anonymity, confidentiality, and unlinkability, then walks through modern tools such as ZK, MPC, FHE, and TEEs, showing how they enable private DeFi, dark pools, and confidential stablecoin rails. [(0xJeff)](https://defi0xjeff.substack.com/p/beginners-guide-to-privacy) **ZachXBT Exposes Axiom Staff Wallet Tracking Abuse** Blockchain investigator [ZachXBT](https://x.com/zachxbt) accuses Axiom Exchange employees, including senior BD manager Broox Bauer, of misusing internal dashboards to access user wallets, transaction histories, and identities for insider trading advantages since early 2025. Evidence includes audio clips where Bauer boasts of tracking users via referrals or IDs, leaked screenshots of private data for traders like "Jerry" and "Monix," and a Google Sheet compiling influencer wallets confirmed by victims. ([Bitcoin.com](https://news.bitcoin.com/zachxbt-alleges-axiom-employees-misused-internal-tools-to-track-user-wallets/)) Companies in the news ===================== **Hyperliquid Funds $29M DeFi Policy Push in DC** The Hyperliquid Foundation donates 1 million HYPE tokens, worth about $29 million, to launch the Hyperliquid Policy Center, a nonprofit advocacy group in Washington, D.C. Led by crypto lawyer Jake Chervinsky, the center will conduct research and lobby for sensible DeFi regulations, including perpetual derivatives, to integrate decentralized finance into mainstream systems and prevent U.S. lag behind global peers. ([The Block](https://www.theblock.co/post/390326/hyperliquid-foundation-sets-up-defi-policy-advocacy-group-with-29-million-hype-token-donation)) Gimme the loot ============== **Explained: The IoTeX Hack (February 2026)** Halborn breaks down how a compromised private key on IoTeX’s ioTube Ethereum-side validator enabled an attacker to gain admin control and drain around 4.4M USD in assets, then route most funds through ETH and into BTC via THORChain. The analysis highlights bridge validator key management, cross‑chain liquidity flows, and IoTeX’s incident response. ([Halborn](https://www.halborn.com/blog/post/explained-the-iotex-hack-february-2026)) [SlowMist stats this week](https://hacked.slowmist.io/statistics/?c=all&d=2026) ------------------------------------------------------------------------------- Total 2026 hack events: **_28_** The amount of money lost this year: **_$113,968,414_** We must have regulations ======================== **US Crypto Policy Tracker** Latham & Watkins has a nice tracker for key federal and state crypto legislation. It covers key bills and proposals in Congress across digital assets, stablecoins, DeFi and CBDCs. ([Latham & Watkins](https://www.lw.com/en/us-crypto-policy-tracker/legislative-developments)) **Who's Following the Smart Money?** [![](https://storage.googleapis.com/papyrus_images/7ec88bbaee442a52f7340cae3a5a487f3e1faaa446b39e00b9c5a62a8d0ce407.png)](https://polymarket.com/event/clarity-act-signed-into-law-in-2026#WhmZwDOt) ([Polymarket](https://polymarket.com/event/clarity-act-signed-into-law-in-2026#WhmZwDOt)) Research corner =============== **A Deep Dive on Address Poisoning** Taro Tsuchiya and colleagues quantify blockchain address poisoning attacks on Ethereum and BSC, detecting 270 million attempts targeting 17 million victims over two years—13 times prior reports—with 6,633 successes causing $83.8 million losses. Attackers generate lookalike addresses to infiltrate transaction histories, tricking users into sending funds to fakes; strategies include targeted timing, similarity optimization, and cross-chain operations, often powered by GPUs. Large entities compete profitably, underscoring needs for better wallet UX like history warnings and address verification tools. ([arXiv](https://arxiv.org/abs/2501.16681)) --- *Originally published on [W3SB](https://paragraph.com/@w3sb/0x22-web3-security-bulletin)*