Yahoo's bombshell revelation that some 500 million of its email accounts have been compromised by a state-sponsored hack shows that no online service — no matter how big — is safe from attacks. So there's a chance that even if you don't use Yahoo as your primary email, you have an account lying dormant somewhere. Change your passwordYahoo also is recommending that all users change their passwords if they haven't done so since 2014. Enable 2-step verificationIf the service you're using has two-step verification — and Yahoo does — turn it on. Beware of griftersThe Yahoo hack has a lot of people talking and panicking, and cybercriminals will use that against you.

Source: CBC News September 23, 2016 16:57 UTC