To prevent <span class="pc-clone mac-clone">installing</span> <span class="upgrade-clone">upgrading to</span> an outdated version of Tails with known security issues, make sure that the Tails you are <span class="pc-clone mac-clone">installing</span> <span class="upgrade-clone">upgrading</span> from is up-to-date:
<p>In a <a href="https://www.forensicfocus.com/stable/wp-content/uploads/2011/08/cold_boot_attack_for_forensiscs1.pdf">research report from 2011</a>, Defense Research and Development Canada concluded that cold boot attacks can be useful in some cases to acquire data in memory but are not a panacea and have many drawbacks dictated by the laws of physics, which cannot be overcome by the technique. The authors recommend to only use cold boot attacks as a last resort when all other avenues have been exhausted.</p>