Homoglyphs Memes

So someone named "Geoffrey" managed to nuke the entire system, and naturally everyone's playing detective trying to figure out what went wrong. Unicode characters? Nah. SQL injection with "root" or "null"? Not today. Maybe an SQL keyword like "select"? Keep guessing. Turns out it was just... Geoffrey. Except look closer at that last line. See the difference? Ge o ffrey vs Ge ο ffrey . That second "o" is the Greek omicron (ο) instead of a Latin "o". Visually identical, but to your database? Completely different characters. Welcome to the wonderful world of homoglyphs, where your WHERE clause confidently returns zero rows while you question your entire career. This is why we can't have nice things, and why every senior dev has trust issues with user input. Input validation isn't paranoia—it's pattern recognition from trauma.