Definition ∞ A key rotation policy is a security measure that mandates the regular replacement of cryptographic keys with new, distinct keys. This practice minimizes the window of opportunity for attackers to exploit a compromised key, even if its compromise goes undetected for some time. By frequently updating keys, the potential impact of a single key exposure is significantly reduced. It is a critical component of robust key management, enhancing the long-term security of encrypted data and digital asset operations.
Context ∞ Implementing effective key rotation policies is a continuous discussion point in enterprise security and digital asset custody, particularly for systems handling large volumes of value. The challenge involves balancing security benefits with operational overhead and ensuring seamless transitions between old and new keys. Automation of key rotation processes is a key area of focus for improving security hygiene.
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