What happened
Executive device compromise; keys drained from a Solana multisig.
Transaction-level mechanics
Public post-incident disclosures do not include full transaction calldata or execution traces for this incident.
TODO: Add exact Safe transaction hash, decoded actions, and the on-chain state changes once verified primary sources are available. For now, the attack vector summary above is derived from public reporting.
What independent decoding / hash verification / config scanning would have caught
Solana / Squads is out of scope today. This case supports expanding chain support in future.
Verdict
Out of scope