Meet Glitchy :3
 
A computer virus that was brought to life due to magic, she is a devilish trickster.
 
She goes around the computers of other ponies, making their computers slow down,giving them viruses and spam, messing around with files, she can be a mean one.
 
Fortunately (or unfortunately), she only does this to mean ponies,often ones that like to bully other ponies online.  
She can travel from one computer to an instant, and can even interact with games and videos online.
 
In her physical form, she ironically actually helps out with fixing computers, as since she is a virus, she knows a lot about them.