Possible account hacked, including two factor authentication tfa

Possible account hacked, including two factor authentication tfa

Hi. I turned my PC on two days ago and suddenly an unattended Zoho Assist session started. I am the only person with access, so I shut down Zoho Assist and instantly changed my password and added two factor authentication. I just turned my PC on this evening and the same thing happened. How is this possible with TFA? Could Zoho themselves have been hacked?

Nick.