[yowzadave]

> Let's commit to maintaining complete confidentiality about the company—no exceptions. If you can't handle that, then just leave.

It's like a teacher dressing down the entire class for something one student did. A single person at the company made this fireable offense. Why is he treating the rest of them like naughty children? Especially since he's so sure he'll be able to catch the guilty party. Catch the person who did it, send a professional email to the rest of the company reminding them that leaking confidential info will get you fired. Treat the adults in your company like adults.