Ps4 Twitch stopped working?

A friend of mine recently had this ad, he was hacked or does anyone know what to do?

It seems to me that someone else found the password and is now using the account. Change / reset the password to be on the safe side.

Chances are you've been hacked. Change the password quickly and notify the support! If you have entered the means of payment, delete them and, if necessary, block the Ec card etc.

Change your Twitch password and go to the Twitch settings on your laptop or something. With the linked accounts, you can then see which Playstation account is linked.

Thank you I will tell him 👍