I was thinking the same as you when I read this article. And I agree with you on the desktop computers. But then started thinking further. In most cases disk encryption is used on laptops. And many laptop users don't shutdown their system but leave them on standby modus. If such a laptop gets stolen, the users' session is activated when the system is accessed. Powering down the system and bringing it up with from a different source would make reading previous information stored in RAM theoretically possible if what they claim is true.
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I was thinking the same as you when I read this article. And I agree with you on the desktop computers. But then started thinking further. In most cases disk encryption is used on laptops. And many laptop users don't shutdown their system but leave them on standby modus. If such a laptop gets stolen, the users' session is activated when the system is accessed. Powering down the system and bringing it up with from a different source would make reading previous information stored in RAM theoretically possible if what they claim is true.