Unfortunately, as mentioned in our Terms of Us, available here[legal.ubi.com], in particular, section 2.2 states that your account is your responsibility.
"Account Safety. Any use of your Account with your password, in particular any purchase of Services, will be deemed to be carried out by you.
To ensure your Account safety:
a) Choose a strong alphanumeric password. For security reasons, we may refuse any password that isn’t strong enough to protect your Account.
b) Choose a password that is different from any other password you use; and change it on a regular basis.
c)... Read more