Even if it isn't the law, most companies make you sign away your ownership of any and all communications made using company provided systems or materials as par

Even if it isn't the law, most companies make you sign away your ownership of any and all communications made using company provided systems or materials as part of the employment contract. Be sure to read your employment agreement. And never, ever, use work related systems for anything personal or private or inappropriate. "NSFW" means something. Heck, apply this level of thinking to any system you don't own or control. Unless privacy is baked into the protocol, you have none. Period.