Known issues in Tails are described publicly in our [[!tails_gitlab tails/tails/-/issues desc="GitLab issue tracker"]]. We might hide embargoed security vulnerabilities in Tails while we work on a solution, but only as a way of protecting our users.
Debian and its derivatives are [the most popular Linux distributions on web servers](https://w3techs.com/technologies/details/os-linux) across the Internet.
The Debian project is coordinated over the Internet by a team of volunteers whose work is entirely public. All this makes Debian one of the Free Software projects under the most scrutiny by security researchers.