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> It's pretty common for law enforcement to quickly freeze RAM when busting hackers

I’d really love a citation on this, especially since “quickly” seems to imply that they’d do this out in the field.

If you can't prevent the device from powering down, you have less than a minute to freeze the RAM before the contents become useless. This can be done with a can of cold spray.

No idea how long you have to power it back on afterwards, tens of minutes to a couple of hours probably.

That said, the proper "kill switch" operation would be to explicitly wipe the key from memory before powering off (if you want to power off instead of just locking).

> you have less than a minute to freeze the RAM before the contents become useless. This can be done with a can of cold spray.

I wonder what their approach to a laptop with poor serviceability would be. I think it would take me more than a minute to get physical access to the ram of some modern computers.

> I think it would take me more than a minute to get physical access to the ram of some modern computers.

RAM is still one of the most accessible parts for most laptops & desktops.

Tablets and phones on the other hand make it much much harder.

That’s because you’re concerned with the laptop still being usable afterwards. :)

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