Playing Heroes of Might and Magic V on Ubisoft servers.

They sent me an email saying that they're experiencing a surge in hacker activity, accounts are being hacked, and passwords need to be changed... Try checking the email address you used to register your account as well. And our technical support team is here to help.
Yes, I haven't logged into the game on Ubisoft recently, but everything seems to be working fine on the website, it loads properly.