Circuit Breaker (Pausable)
Security · Deep
An on-chain emergency mechanism that lets an authorized operator halt sensitive instructions (mint, transfer, withdraw) by flipping a single boolean flag stored in program state, without redeploying the program. Every protected instruction reads the flag at the start of its guard sequence and returns an error if paused. Critical for incident response but introduces centralization risk, so the pause authority is often a multisig or time-locked governance key.