For developers building DeFi lending protocols, a faulty price feed is an emergency scenario: a protocol may trigger liquidations using incorrect prices. Aave founder Stani Kulechov warned at DAS London that protocols need circuit breakers because the consequences of an oracle failure could take years to resolve, according to ChainCatcher, citing Crypto Briefing.
Kulechov said systems that rely too heavily on immutable code can lack a way to respond when oracle data is wrong. He pointed to circuit breakers—modeled on pauses in traditional markets during extreme conditions—as a way for a protocol to stop operating while the problem is investigated.
Original report: ChainCatcher, published November 12, 2026, at 13:59 (UTC+8).