Overview
- Blockchain explorer Beaconcha.in recorded the Sept. 10 penalties against 39 validators tied to SSV-based setups in one of the largest coordinated slashings since Ethereum’s proof‑of‑stake transition.
- SSV Network founder Alon Muroch said routine maintenance at Ankr triggered one affected validator cluster but did not reflect any compromise of the SSV protocol.
- Investigators said a separate cluster tied to a prior Allnodes migration likely ran a secondary instance, causing duplicate signing that led to slashing.
- Initial losses were about 0.3 ETH per validator with additional exposure from inactivity leaks if nodes are offline during the exit process.
- Slashing remains uncommon on Ethereum—fewer than 500 of over 1.2 million validators have been penalized—while staking faces longer exit queues, reported withdrawal waits of up to 12 days, and millions of ETH queued to unstake.