VCN will be requiring accounts update their password. VCN recommends that you update your password annually and use unique passwords.
Many online web sites have been compromised. If you reuse the same password then hackers can also gain access to your other accounts.
You can use https://haveibeenpwned.com/ to check if you have any compromised accounts. You can also sign up for notifications by entering your email at https://haveibeenpwned.com/NotifyMe.
To help remember all your passwords you can use an open source password manager such as Firefox Lockwise, KeeWeb, or Bitwarden.
Alternatively, you can keep a notebook of all your passwords in a secure place.