I would take this with a grain of salt. He doesn't say what exposed passwords he used as his sources, but I'd bet the linkedin passwords were part of it. But a

I would take this with a grain of salt. He doesn't say what exposed passwords he used as his sources, but I'd bet the linkedin passwords were part of it. But a lot of people will knowingly use an unsecure password for a site like linkedin, because they don't really care if its hacked. Using a secure password for bank accounts, email, etc. is critical, but I don't think it's realistic to ask people to have unique, secure passwords for their account on forums.49ersfans.com. That just isn't going to happen. It's interesting, but I'm skeptical his sources are even remotely a good proxy for bank account PIN numbers.