If you believe you have found a security issue affecting Qubes OS, either directly or indirectly (e.g. the issue affects Xen in a configuration that is used in Qubes OS), then we would be more than happy to hear from you!
We promise to treat any reported issue seriously and, if the investigation confirms it affects Qubes, to patch it within a reasonable time, release a public Security Bulletin that describes the issue, discuss potential impact of the vulnerability, reference applicable patches or workarounds, and credit the discoverer.
Please use [this GPG key](http://keys.qubes-os.org/keys/qubes-os-security-team-key.asc) to encrypt any emails sent to this address. Like all GPG keys used by the Qubes project, this key is signed by the Qubes Master key. Please see [this page](/security/verifying-signatures/) for more information on how to verify the keys.
