Ethereum proposes native transaction assertions to tackle blind signing

Ethereum wants your transactions to come with a built-in fact-checker. A new proposal would let on-chain code verify what a transaction actually changed and reverse the whole thing if the outcome breaks the rules a user set in advance. The idea, called native transaction assertions, was highlighted by the Ethereum Foundation in a blog post on October 5, 2026. It targets one of the oldest and most stubborn weak spots in crypto: blind signing. What the proposal actually does Blind signing is the crypto version of agreeing to terms and conditions you never read. A wallet pops up a request, the details are unreadable or unclear, and the user clicks approve anyway. Most of the time, nothing bad happens. When something does, it tends to be expensive. The Ethereum Foundation framed the new work as a direct response to those risks, which were flagged under its Trillion Dollar Security initiative. That program already includes measures like Clear Signing, which focuses on making transaction requests legible before a user approves them. Native transaction assertions work at a different moment in the process. Clear Signing tries to help you understand a transaction before it runs. Assertions ...