calendar snooping
When one analyzes a co-worker's online calendar for the sole purpose of learning their personal or work business.
Person #1: Hey, Stacy told me you met with the hiring manager for that marketing job last week.
Person #2:How would she know that?
Person #1: She was calendar snooping again.
Person #2:How would she know that?
Person #1: She was calendar snooping again.