Apparently, there were again user accounts data breach at Yahoo.
If you have an email or ever had an email account there, change your password now.
According to the Guardian, this is the second time it happens. Unfortunately, the hack seems to have taken place in 2014 but was only uncovered last week.
I won’t go into details of what happened since I don’t have that information, but I’ll take the chance to recommend that you also use a password “wallet” software like LastPass or KeePass. Both allow you to generate strong passwords that you can use on your accounts.
No matter how often you use that account please do generate strong passwords. Don’t expect to remember it, let the password wallet do that for you.