sayraht:

except that its illegal.

its called the EEO act. look it up.

the only time you can get fired for knowing someone else's salary is if you came about the info wrong - ie snooping. however her coworker told her! she can't get fired for information he decided to tell her.

According to my employer's policy, any discussion of pay between employees is grounds for termination. In fact, every company I have worked for had that same policy.