tails

tails 是从 usb 启动的 live 操作系统,把绝对所有流量都走 tor,关机时把自己擦得干干净净。

tails (the amnesic incognito live system) is a complete debian-based operating system designed to boot from a usb stick, leave no trace on the computer, and forget everything between sessions unless you explicitly enable a persistent encrypted volume. every application in it is configured to reach the internet exclusively through tor - nothing can accidentally connect outside the network.

the amnesic design is the headline feature: shut down and there are no browser histories, no leftover documents, no recents. for shared computers, hotel machines or situations where disk forensics is a concern, that default beats any amount of careful manual cleanup on a regular os.

it ships preconfigured with tor browser, an email client, onion sharing tools, and cryptographic utilities, so it functions as a complete portable workstation rather than a novelty. the trade-off is friction: slower startup, usb-only boot, occasional hardware quirks, and the discipline of moving anything you want to keep into persistence deliberately.

when to choose what: tor browser on your own hardened machine covers everyday needs, tails covers "no traces on this machine, period". whichever you pick, verify the download's signature or checksum before flashing - a tampered anonymity os is worse than none. our comparison note also covers whonix, the vm-based cousin that trades amnesia for stronger isolation.