0xdeadcode //free\\ Link

Then I traced the JUMPDEST that should be unreachable — but a storage collision could reanimate it.

April 13, 2026

"Dead code" isn't harmless — it’s a backdoor waiting to be activated. 0xdeadcode

Last week I audited a contract with 14% unreachable instructions. The owner swore they were "leftover from testing." Then I traced the JUMPDEST that should be

I recently dissected a contract that had this: 0xdeadcode

When you compile a Solidity contract, the optimizer doesn't just remove unreachable paths — it buries them. But "unreachable" at compile time is not "unreachable at runtime" if the EVM state can change.