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+# Security policy
+
+<!-- (no specific versions apart from the last one are explicitly supported)
+## Supported versions
+
+Use this section to tell people about which versions of your project are
+currently being supported with security updates.
+
+| Version | Supported          |
+| ------- | ------------------ |
+| 5.1.x   | :white_check_mark: |
+| 5.0.x   | :x:                |
+| 4.0.x   | :white_check_mark: |
+| < 4.0   | :x:                |
+-->
+
+## Reporting a vulnerability
+
+If you have found a vulnerability or suspect a security problem in liquidctl, please write to <jonas@protocubo.io>.
+
+You can use PGP-encrypted email: the public key is [`5841AF7406AF7AD0`](http://jonasmalaco.com/06af7ad0.asc).
+
+Any security issues reported this way will be addressed urgently and, until responsibly disclosed, confidentially.