When you set up an administration password, an attacker who learns your administration passwordcan get physical access to your computer while Tails is running could be able to break all theyour security measures built in Tailsand:
When you set up an administration password, an attacker who can get physical access to your computer while Tails is running could be able to break your security and:
To learn your administration password, an attacker could watch your keyboard while you type, for example looking over your shoulders or through a video surveillance camera.
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- Learn how to [[quicklyshut down Tails quickly|doc/first_steps/shutdown]] in case of emergency.
<p>For security, it is impossible to set up an administration password after starting Tails. Otherwise, a compromised application could bypass some of the security built in Tails.</p>