Whether or not the hackers are indeed in possession of these passwords, you can protect the contents of your phone in case. A high-entropy password consists of random numbers, upper and lower case letters and special characters. You can also create your own random passwords using simple rules that only you know. Set up two-factor authentication with a secure phone number. For more information on protecting your accounts from being hacked via a stolen phone number, read this story.
Source: Forbes March 24, 2017 21:33 UTC