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46 lines
1.5 KiB
Markdown
46 lines
1.5 KiB
Markdown
<!--
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Title: How to protect Mac computers from cold boot attacks
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Description: Learn how to protect Mac computers from cold boot attacks.
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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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Reviewers:
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Publication date: 2020-06-05T00:00:00.000Z
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Listed: true
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-->
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# How to protect Mac computers from cold boot attacks
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[](https://www.youtube.com/watch?v=d_M18sq0TIQ "How to protect Mac computers from cold boot attacks")
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## Guide
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### Run following command using “Terminal” app.
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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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👍
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`destroyfvkeyonstandby 1` tells macOS to destroy password when computer goes to standby mode.
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`hibernatemode 25` tells macOS to store the content of the RAM to the hard drive and power off the RAM (which clears its data).
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`standbydelaylow 0` tells macOS to enable standby mode immediately when battery is low and computer is put to sleep.
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`standbydelayhigh 0` tells macOS to enable standby mode immediately when battery is high and computer is put to sleep.
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Run `man pmset` using “Terminal” app 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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👍
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