Severity: HighAction: Be aware

Mozilla, Google, Apple block compromised eMudhra CA certificates

Certificate authority eMudhra revoked eight compromised intermediate certificates after researchers found their private keys were so weak that anyone could recover them almost instantly and use them to forge trusted certificates for legitimate websites.

Excerpt from the primary source: BleepingComputer

Who is affected

Security professionals

What you should do · Be aware

No immediate action is indicated. Share this with the relevant teams and watch for updates.

Automated guidance based on this story's classification. Check the linked advisories for specifics.

Sources

We link to original and authoritative sources. Headlines and excerpts belong to their publishers.

Original reporting

Mozilla, Google, Apple block compromised eMudhra CA certificates BleepingComputer · bleepingcomputer.com · Oct 21, 2026 · Primary source