Solana Developer Shares Practical Security Checklist for Anchor Program Deployments

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A Solana developer has published a hands-on security checklist aimed at teams shipping Anchor programs to mainnet, particularly those transitioning from web2 backgrounds. The checklist covers four critical areas: account validation, authority and signer checks, arithmetic safety, and overflow protection. Each item was derived from real bugs the author reproduced personally, including rebuilding the missing owner-check vulnerability that contributed to the roughly $326 million Wormhole exploit. The guide also references historical incidents such as a $2.6 billion-at-risk rounding bug in the SPL token-lending program disclosed by Neodyme in 2021. The author emphasizes that every checklist item must be verifiable by reading the code directly, rather than relying on vague reminders to exercise caution.

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