Frank Abagnale is probably the most famous low-tech hacker since Son’ka the Golden Hand and the man who stole the Mona Lisa, Vincenzo Peruggia. Abagnale famously impersonated various professions, including a doctor and a pilot, to help facilitate his financial scams where he used false identities to forge checks and cash them in. Abagnale ended up being sentenced to 12 years in prison for fraud. He is now a regular at cybersecurity and regulatory compliance conferences. Abagnale used social engineering to extract money, but his techniques were low-tech. However, the outcomes were much the same as the high-tech equivalents of today. Low-tech and social engineering are good bedfellows. In fact, many of the seemingly high-tech counterparts, like CEO fraud, will often have an element of low-tech at some point in the process.
Read more about the low-tech social engineering hack attacks which can harm you most on Infosec Institute.