> "Setting it up means: you need a good storyline, and you must use (fake) social proof provided by trusted others during conversation. The trusted others can be friends, parents, authority figures; the to-be-implanted memory can be a significant event - in the case below, a falsified criminal event."
One obvious defense againt this dark art is to simply not trust anyone, ever - but this approach has consequent repercussions, such as the inability to form normal social bonds with others (as all social relationships entail a certain degree of trust).
Possibly, a revival of 'memory palace' approaches, which involve deliberately training and improving one's memory, would result in built-in resistance to this kind of manipulation.