Yep, that’s why companies try so hard to intimidate people into keeping that info secret. I think most if not every company I’ve ever worked for has had some version of

• It’s against company policy
• It’s illegal
• It will just create jealousy

And of course, my responses have always been

• Too bad, it’s federally protected
• Liar
• No, your payroll policies do that; same job, same pay