The Hilarious Worldz on Instagram: "Here’s a long, fun, and surprisingly fascinating fact about passwords that spans history, technology, and a bit of human psychology: Passwords—those little strings of letters, numbers, and symbols we type every day—are actually one of the oldest security tools in human history, though they’ve come a long way from their early beginnings. The concept of a password dates back thousands of years. Ancient Roman soldiers used watchwords to identify friend from foe a