At Tails, we build a liberating operating system that puts people in control of their digital lives:
Journalists and whistleblowers use Tails to denounce the wrongdoings of governments and corporations.
Activists use Tails to avoid surveillance and organize their struggles for liberatory social change.
Domestic violence survivors use Tails to escape surveillance at home.
Privacy-concerned citizens use Tails to avoid online tracking and censorship.
Tails is and will remain Free Software because the most vulnerable and oppressed people are the most in need of privacy and security.
Donations from passionate people like you are our most valuable source of funding because they guarantee our independence. We are a very small non-profit and our yearly budget is ridiculously small compared to the value of Tails.
An attacker could exploit a security vulnerability in another application in Tails to start an invisible Unsafe Browser and reveal your IP address, even if you are not using the Unsafe Browser.
For example, an attacker could exploit a security vulnerability in Thunderbird by sending you a phishing email that could start an invisible Unsafe Browser and reveal them your IP address.
Such an attack is very unlikely but could be performed by a strong attacker, such as a government or a hacking firm.
This is why we recommend that you:
Only enable the Unsafe Browser if you need to log in to a captive portal.
Always upgrade to the latest version of Tails to fix known vulnerabilities as soon as possible.
We added a new feature of the Persistent Storage to save the settings from the Welcome Screen.
This feature is beta and only the additional setting to enable the Unsafe Browser is made persistent. The other settings (language, keyboard, and other additional settings) will be made persistent in Tails 4.9 (July 28).