Inappropriate use of digital media

When I was in the business world I had coworkers share inappropriate messages and pictures with adult content and themes.  Since I've started teaching I have not received inappropriate emails. I have had some of my students receive and send inappropriate emails and social media posts that resulted in the students having their computer use curtailed or monitored. I don't use social media much nor do I share my social media with students.  I do not give students my cell phone if they need to contact me I have them go through the school secretary.