If I criticize someone for talking loudly during class, and I haven't talked at all, that wouldn't be hypocritical, even if we were both browsing Facebook or something.
If you criticize them for being too loud with their talking while you were repeatedly slamming books against each other, you're being hypocritical. It's not the same behavior but it's still an inappropriate loud behavior. In the microsoft/google case it's privacy invasion.