The Silence That Speaks

In the US, the government can issue a National Security Letter (NSL) that forces a company to turn over data AND imposes a "gag order" preventing them from telling anyone about it.

This creates a paradox: how can a company warn its users if it's legally forbidden to speak?

The answer is a Warrant Canary. It's a regularly published statement that says: "As of this date, we have NOT received any secret warrants."

When a canary is not renewed

Some organisations have used regular negative statements in the hope that a missing update could signal a change they are not permitted to describe directly. The legality and usefulness of that inference are uncertain and depend on jurisdiction and circumstances.

Non-renewal can also mean neglect, a policy change, staff turnover or publication failure. It is not proof that one specific order exists, and users should not be told simply to “be afraid.”

ZeroLatch's transparency page describes the service and its limits. The previous warrant canary remains inactive; updating the transparency page does not renew it. A future active canary should be dated, independently reviewed, signed in a verifiable way, and renewed on a published schedule.

What credible transparency looks like

A useful transparency program defines the reporting period, request categories, jurisdiction, response outcomes and limitations. It distinguishes a warrant canary from an ordinary transparency report and archives prior signed statements so readers can verify changes.

Users should still assume that an online service may receive lawful requests and may hold account metadata even when file contents are encrypted. Choose the ZeroLatch recovery mode based on the actual key-custody boundary, not on an undated canary or a promise of immunity.