This is one of the most common crypto scam methods. In address poisoning, the scammer creates an address that is similar to the victim's address. Not fully similar, but the first and last strings of the address. And if one isn't careful enough, he or she will lose everything. I don't know how exactly poisoning works or is made, but it's really frightening. To be honest, nobody memorizes their full address or can. In short it's hard. It isn't something memorisable. For me, I can only memorize last strings, maybe 5 characters, but no more than that.
Note: If I were sending $71 million worth of assets, I would definitely check every character one by one. No way I'm trusting copy paste or autofill option!...