Solana developers propose retiring durable nonces after Drift hack

Developers on the Solana network are working to phase out durable nonces, the mechanism exploited in the April hack of Drift Protocol, Cryptonews reported on November 9, 2026. According to that account, the proposal, numbered SIMD-0723, was filed on November 5 by Anza contributor Gabe Rodriguez. It would retire transactions that never expire.

Normal Solana transactions expire after about 30 seconds, while durable nonces allow transactions that never expire, which the proposal would retire. The account says attackers in the Drift case held approvals for over a week before submitting them. A North Korean-linked group was blamed by Drift for the attack, which drained at least $270 million.

The proposal has an earliest mainnet activation date of May 5, 2027, but it still needs technical approval and migration planning. Until that approval arrives, the proposal remains a plan rather than a network change. Solana is also exploring replacement offline signing programs, according to the account. The change affects exchanges and institutional custodians.