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38 lines
1.8 KiB
Markdown
38 lines
1.8 KiB
Markdown
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Title: How to protect Mac computers from cold boot attacks (also known as an evil maid attack)
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Description: Learn how to protect Mac computers from cold boot attacks (also known as an evil maid attack).
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Author: Sun Knudsen <https://github.com/sunknudsen>
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Contributors: Sun Knudsen <https://github.com/sunknudsen>
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Publication date: 2020-06-05T00:00:00.000Z
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-->
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# How to protect Mac computers from cold boot attacks (also known as an evil maid attack)
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[.png>)](https://www.youtube.com/watch?v=d_M18sq0TIQ "How to protect Mac computers from cold boot attacks (also known as an evil maid attack) - YouTube")
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**Run the following `pmset` command using the Terminal.**
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```shell
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sudo pmset -a destroyfvkeyonstandby 1 hibernatemode 25 standbydelaylow 0 standbydelayhigh 0
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```
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`destroyfvkeyonstandby 1` tells macOS to destroy your password (override it with random data) when your computer goes to standby mode.
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`hibernatemode 25` tells macOS to store the content of the RAM to the hard drive (which is encrypted using FileVault) and power off the RAM (which clears its data).
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`standbydelaylow 0` tells macOS to enable standby mode immediately when your battery is low and you put your computer to sleep.
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`standbydelayhigh 0` tells macOS to enable standby mode immediately when your battery is high and you put your computer to sleep.
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See `man pmset` for more information.
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---
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## Want things back the way they were before following this guide? No problem!
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**Run the following `pmset` command using the Terminal.**
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```shell
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sudo pmset -a destroyfvkeyonstandby 0 hibernatemode 3 standbydelaylow 10800 standbydelayhigh 86400
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```
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