Slashing is a security mechanism in Proof-of-Stake blockchains that penalizes validators who violate consensus rules. Slashing Risk Management is the practice of preventing, monitoring, and mitigating these penalties through careful infrastructure design, operational discipline, and protocol compliance. The most common slashing events are double-signing (a validator signs two conflicting blocks) and downtime (a validator goes offline and misses attestations). The penalties range from gradual inactivity leaks to total loss of stake. Professional validators must manage both active and passive slashing risks.