My league account of 7y was hacked and banned today.

So, this isn't nice.

Today i woke up to a call from a friend of mine, warning me he thought my account was hacked and that someone changed my name. Naturally I went and checked this. Turns out it did and someone actually played 2 games where they must have cheated, because i got banned for using 3rd party programs. I was hoping either to know if this was occured to anyone or someone you might know, so i can do something about it (if i can). Thank you.