Ethereum Ends "Blind Signing": Clear Signing Standard Marks a New Paradigm for Web3 Security

"What You See Is What You Sign" — An Answer to a Structural Flaw

Clear Signing implements the principle of "What You See Is What You Sign" — replacing raw hexadecimal calldata at the approval moment with human-readable natural language. Until now, most wallets displayed unintelligible byte-level data, forcing users into "blind signing." The Ethereum Foundation stated bluntly in its official post that transaction approval "should be the last line of defense" for on-chain assets, but "when done blindly, that defense does not hold" — explicitly acknowledging a structural industry flaw.

Four-Layer Architecture — ERC-7730 + Registry + ERC-8176 + Tooling

Clear Signing is not a single feature but a four-layer infrastructure stack. First, ERC-7730 is the open JSON format describing smart contract calls and typed messages in human-readable form. Second, the public registry at clearsigning.org stores descriptors that wallets reference. Third, ERC-8176 (attestation framework) uses the Ethereum Attestation Service to let independent auditors cryptographically verify descriptor accuracy. Fourth, open-source tooling libraries for wallet and dApp developers. Critically, descriptors live off-chain — no smart-contract redeployment is required, enabling retrofit deployment across the entire ecosystem.

From Ledger Origin to Ethereum Foundation Neutral Stewardship

Ledger proposed ERC-7730 in 2023 and built the initial tooling and registry. The substance of this announcement is the transfer of stewardship to the Ethereum Foundation's "Trillion Dollar Security Initiative," elevating Clear Signing to a neutral, ecosystem-wide standard. Trezor committed to implementation by June 30, 2026. MetaMask, Fireblocks, WalletConnect, Cyfrin, Sourcify, Zama, ZKnox, Keycard, and Argot joined the working group. Trezor CTO Tomáš Sušánka called it "a critical security advancement for our entire industry."

The Bybit $1.4 Billion Hack — The Wound Behind the Initiative

The direct trigger was Bybit's February 21, 2025 hack. North Korea's Lazarus Group compromised Safe{Wallet}'s frontend JavaScript (hosted on AWS S3), substituting Bybit's routine cold-to-hot wallet transfer with a malicious delegatecall that transferred control of the wallet contract itself. Three multisig signers approved what they saw on screen — but the real transaction differed entirely. Roughly 401,000 ETH ($1.4 billion) was drained instantly. Had Clear Signing been deployed, signers would have seen the actual delegatecall and destination in human-readable form, likely catching the tampering.

[Business Development Insights]

1. A security upgrade requiring no protocol changes is, itself, an innovation — Clear Signing's strategic brilliance is that it demands zero changes to Ethereum's base layer. Descriptors are off-chain, the registry is independent, existing contracts need no modification. Without waiting for hard forks or multi-year EIP consensus, the industry built a deployable security layer at the wallet product tier. This directly addresses the biggest barrier to enterprise Web3 adoption — unpredictable signing risk — through product-implementation speed.
2. The value of neutral stewardship — Ledger handed it to the Ethereum Foundation — Ledger's decision to relinquish leadership of a standard it originated was strategically correct. Single-vendor-hosted standards struggle to gain rival wallet adoption; a neutral foundation can scale across all wallets, L2s, and L3s. Building an industry standard in Web3 requires the courage to let go of ego and hand it to the ecosystem.
3. CISO and compliance evaluation criteria are shifting — For institutional investors and listed companies, Clear Signing compatibility will likely become a mandatory selection criterion for custodians and wallet vendors. As the audit standard "infrastructure permitting blind signing is not governance-acceptable" takes hold, both enterprise custody (Fireblocks et al.) and consumer wallets (MetaMask et al.) will face Clear Signing readiness as a procurement requirement. Web3 service vendors selling to enterprises should make their compatibility status explicit by Q3 2026.

[Sources]

• NADA NEWS "Ethereum Introduces Security Feature 'Clear Signing'" (May 13, 2026) https://www.nadanews.com/348397/
• Ethereum Foundation Official Blog "Clear Signing: Making Transaction Approvals Safer on Ethereum" (May 12, 2026) https://blog.ethereum.org/2026/05/12/clear-signing-announcement
• Ledger Official Blog "Stewardship of Clear Signing Passed To Ethereum Foundation" (May 12, 2026) https://www.ledger.com/blog-ledger-clear-signing-ethereum-foundation
• The Block "Ethereum Foundation rolls out support for Clear Signing crypto security solution" (May 12, 2026) https://www.theblock.co/post/401001/ethereum-foundation-rolls-out-support-for-clear-signing-crypto-security-solution
• BeInCrypto "Ethereum Foundation Launches Clear Signing to Improve Wallet Security" (May 12, 2026) https://beincrypto.com/ethereum-foundation-launches-clear-signing-standard/
• Crypto Times "No More Blind Signing: Ethereum Rolls Out Major Wallet Security Upgrade" (May 12, 2026) https://www.cryptotimes.io/2026/05/12/no-more-blind-signing-ethereum-rolls-out-major-wallet-security-upgrade/
• CoinMarketCap "Ethereum Foundation Launches 'Clear Signing' Standard To End Blind Transaction Risk" https://coinmarketcap.com/academy/article/ethereum-clear-signing-standard-wallet-security
• NCC Group "Bybit Hack: In-Depth Technical Analysis" https://www.nccgroup.com/research/in-depth-technical-analysis-of-the-bybit-hack/
• DL News "Hack of wallet provider is behind $1.4bn Bybit theft, investigation finds" (Feb 26, 2025) https://www.dlnews.com/articles/defi/safe-wallet-compromise-behind-bybit-hack/
• The Block "Lazarus appears to compromise Safe developer machine in lead up to $1.5 billion Bybit hack" (Feb 26, 2025) https://www.theblock.co/post/343530/lazarus-appears-to-compromise-safe-developer-machine-in-lead-up-to-1-5-billion-bybit-hack-report
• CSIS "The ByBit Heist and the Future of U.S. Crypto Regulation" https://www.csis.org/analysis/bybit-heist-and-future-us-crypto-regulation