MetaMask Withdraws Validators Amid $1.4 Billion Staking Security Incident

MetaMask has withdrawn over 17,000 validators from its Ethereum staking service after discovering that block rewards were being diverted to a wallet funded through Tornado Cash.

The security incident, which was disclosed on October 1, triggered one of the largest precautionary validator exits of the year, pulling 523,000 staked ETH worth $1.4 billion out of active duty and sending shockwaves through Ethereum's staking infrastructure almost overnight.

Liquid staking platform Lido Finance warned that the move would 'likely incur foregone rewards as well as possible downtime penalties' if validators end up offline during the transition, a cost that comes with pulling that much stake out of circulation on short notice.