Not sure if it’s true, but I’ve heard that mail (at least in the US) is safer because the cost to send letters is high enough to deter bulk sends vs email/phone

Not sure if it’s true, but I’ve heard that mail (at least in the US) is safer because the cost to send letters is high enough to deter bulk sends vs email/phone, that postal inspectors are relatively effective at catching people, and that the laws around mail fraud make prosecutions easier.