Secret rotation
Secret rotation is regularly replacing credentials like API keys and passwords and revoking the old ones. Learn why it matters and how to do it without downtime.
Secret rotation is the practice of regularly replacing credentials such as API keys, passwords, and tokens with new values, then revoking the old ones. It limits the window an exposed secret stays useful, contains the damage from leaks, and is often required by compliance frameworks. Rotation can be scheduled at intervals or triggered by a suspected compromise.
Why it matters
Credentials leak in quiet ways: a committed .env file, a log line, a screen share, a former employee's laptop. You rarely know the exact moment of exposure, so the safest assumption is that any long-lived secret may already be compromised. Rotation shrinks the value of a leaked credential by giving it a short useful life. If a key is rotated every 30 or 90 days, an attacker who captures it has a limited window before it stops working. Rotation also forces teams to confirm that their systems can swap credentials cleanly, which is exactly the capability you need during a real incident.
How to do it without downtime
The key to safe rotation is overlap. Issue the new credential, deploy it everywhere the old one was used, verify traffic is flowing on the new value, then revoke the old one. Supporting two valid credentials at once avoids the outage that comes from revoking before every consumer has switched. Centralized secrets management makes this practical: update the value in one place and let services pull the new version at runtime instead of redeploying each one. Envless keeps an attributed change history on every variable and a published version history on every environment, so you can confirm what changed, when, and roll back quickly if something breaks.
Related terms
Secret rotation FAQ
It depends on sensitivity and risk. Many teams rotate high-value credentials every 30 to 90 days and rotate immediately after any suspected exposure or staff departure. The right cadence balances security against operational effort; automation and centralized management let you rotate more often with less friction.
Scheduled rotation happens on a fixed interval as routine hygiene, limiting the lifetime of any credential. Emergency rotation is triggered by an event, such as a leak, breach, or offboarding, and is done immediately to cut off access. A good process supports both without service downtime.
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