Opcode Abuse Prevention

Opcode abuse prevention involves restricting or carefully managing the use of dangerous EVM opcodes within smart contracts. Opcodes like delegatecall, selfdestruct, and callcode can have severe security implications if used improperly.

Auditors scan the codebase for these opcodes and ensure they are used with appropriate safety guards and access controls. In many cases, they recommend using safer alternatives or limiting the scope of these operations.

Preventing opcode abuse is a critical part of hardening a protocol against both internal and external threats. It requires a deep understanding of the EVM's execution model and the potential for unintended side effects.