Cybersex didn't exist 30 years ago when your parents started fooling around. It's too new for schools to cover it. So it's easy to get lost when you're trying to find out what it is and what to do.
Cybersex is "sex" but it's online. Two people find each other-- usually through chat rooms or instant messenger-- and they type sexual messages back and forth. There are specific chat rooms for this kind of thing, but if you use a major IM network you may be hit up randomly with this kind of request (often unwelcome). Skype in particular is bad about this.
Sometimes people just flirt. Other times people type messages to simulate having sex. Usually both participants masturbate as they type messages. Sometimes people exchange pictures or use webcams.
Most people who do cybersex do it with people they don't know-- strangers that they have never met (and never intend to meet). It's an easy and relatively safe way to experiment and try out sexual fantasies without actually putting one's body at risk. Also, since there is no real physical contact, there is no risk of pregnancy or sexually transmitted diseases. Since it's basically just masturbating with another person, it's very safe sex.
Many people don't see the point of cybersex. Most of these people don't enjoy masturbating, either. Whether you are interested in cybersex or not, though, there are some things to bear in mind.
Everything we do in life has risks. For cybersex, here are the most important ones.