[Security Disclosure] Kiln precautionary out of order exits in response security incident

[Mol_Eliza]

@ernopp

The Lido analytics workgroup has performed an evaluation of the impact of Kiln’s precautionary out of order exits due to the incident, which they will publish in this thread.

The analysis concludes on an evaluated total impact of 207.312 ETH in missed protocol rewards, with an average ~13.5 days of missed rewards for 5 726 deposited validators.

Hey there, @ernopp!
Thank you for the well-structured Postmortem and transparency in communication.

Details on impact evaluation could be found here: Kiln precautionary out of order exits impact evaluation
Missed protocol rewards evaluation (207.312 ETH) is based on non-productive ETH estimation on observed history for ETH exiting and partially re-entering (as part of it is utilized for withdrawals).
For the missed rewards rate the protocol average APR is used (from 9th of September till 20th of October) at 3.06%

• Green line: protocol staked ETH, based on deposits / withdrawal requests. Proxy for baseline exit demand. Correlates well, not a 1:1 with validator exit requests.
• Red line: actual staked ETH with out-of-order exits by Kiln and deposits made afterwards
• Shaded area between curves: approximate excess ETH made non-productive due to out-of-order exits.