# What is Tails OS and should I use it?

> Source: https://fuckyc.org/q/what-is-tails-os/
> Last verified: 2026-05-12

**Short answer:** Tails is a Linux live OS that runs from USB, routes all traffic through Tor, and leaves no trace on the host machine. Use it for source work, activism, or any session where forensic resistance matters.

Tails (The Amnesic Incognito Live System) is a Debian-based live operating system that boots from a USB key. Three properties define it: all network traffic is routed through Tor by default; nothing persists to the host machine's disk between sessions (unless you explicitly enable a Persistent Storage volume); the system ships with privacy-focused defaults (Tor Browser, OnionShare, KeePassXC, Electrum-with-Tor). Use cases: journalists handling sensitive sources, activists in higher-threat environments, anyone who needs a known-clean ephemeral environment. Limitations: requires a separate machine or willingness to reboot; the Tor-by-default routing can fingerprint Tails users; not appropriate for routine work where convenience matters. For users who want compartmentalization without rebooting, Qubes OS is the alternative.

## Related services

- https://fuckyc.org/services/tor-browser/
- https://fuckyc.org/services/onionshare/
- https://fuckyc.org/services/keepassxc/

## Related guides

- https://fuckyc.org/guides/privacy-stack-for-journalists/
- https://fuckyc.org/guides/privacy-stack-for-activists/