Learn how to [[shut down Tails quickly|doc/first_steps/shutdown]] in case of emergency.
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<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 into Tails.</p>
<p>For security, it is impossible to set up an administration passwordafter starting Tails. Otherwise, a compromised application could bypass some of the security built into Tails.</p>