What Is Secret Rotation?
Secret rotation is the practice of periodically or automatically replacing a credential — an API key, password, certificate, or token — with a new value, while invalidating the old one. The goal is to limit the window of time during which any single secret remains valid, so that if it is ever leaked, stolen, or exposed without detection, its usefulness to an attacker is bounded by the rotation interval rather than open-ended. Rotation can be scheduled on a fixed cadence (e.g., every 90 days), triggered by an event (a suspected leak, an employee departure, a completed project), or fully automated through a secrets management platform that issues short-lived credentials and retires them without manual intervention. Effective rotation requires that every system consuming the secret update to the new value in a coordinated way, which is often the practical obstacle that keeps rotation from happening consistently.
Why It Matters
A secret that never rotates is a secret whose exposure window never closes. Long-lived credentials accumulate risk simply by existing: the longer a key sits unchanged, the more places it may have been copied into scripts, logs, configuration files, or third-party tools, and the more time an attacker who obtains it undetected has to act. In practice, rotation is often skipped precisely because it's operationally risky — updating a credential everywhere it's used can break integrations if even one dependent system is missed, so teams default to leaving working secrets alone rather than testing that fragility. France's NIS2 transposition (the Resilience bill) is still before Parliament; ANSSI has already published the ReCyF framework so entities can prepare. With non-human identities vastly outnumbering human accounts, unrotated secrets are a significant and often invisible contributor to overall exposure.
How Cydenti Helps
Cydenti tracks the age and usage of every credential across your environment, identifying secrets that have gone stale relative to their risk level and the systems they can reach. Rather than treating rotation as an all-or-nothing initiative, Cydenti helps teams prioritize which secrets to rotate first based on actual exposure and blast radius, and maps the dependencies a rotation would touch — reducing the operational fear that keeps rotation from happening.
Explore →Frequently Asked Questions
How often should secrets be rotated?
There's no single correct interval — it depends on the credential's sensitivity, blast radius, and how it's stored. High-privilege secrets or those embedded in less-controlled locations warrant shorter cycles, sometimes automated and short-lived, while lower-risk secrets may rotate less frequently. The principle matters more than the exact number: no secret should be valid indefinitely by default.
Why isn't secret rotation done more consistently in practice?
Rotation is often skipped because updating a credential everywhere it's used is operationally risky — missing even one dependent system can break an integration. Without clear visibility into where a secret is consumed, teams reasonably default to leaving working credentials alone rather than risk an outage.
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