The “cold boot” attack is perhaps the toughest attack to defend against on a computer without specialized crypto-hardware. The flaw lies more with computer memory than the involved crypto. The attack team used an interesting intrinsic property of computer memory to successfully hack BitLocker. If you’re worried about this attack, make sure your unattended, powered-on computers have good physical security. Alternatively, consider using hardware crypto solutions that are resistant to cold boot attacks. The attack requires the attacker to somehow acquire the victim’s computer while it’s powering down.”]
Source: https://www.csoonline.com/article/2626969/full-disk-encryption-isn-t-quite-dead.html