And it goes even further, it's the whole Microsoft account that is affected by this massive hacking.
Everyday I got someonelse who sends me weird links with my user ID in it, those users does no longer have access to their skype account although they are being online most of the time.
I recommand to delete all your contacts, abandon skype and find something else.
My account hasn't been hacked yet but it's probably just a matter of time. Here's some alternatives you should consider:
Faceboobs - mostly for familly
Steam - gaming friends
For anything else: Telegram https://telegram.org/