There have been some reports in the news about hijacked cell phones. In effect, taking over your cell phone to take control on all domains and social media.
A couple of links:
LinusTechTips
https://www.youtube.com/watch?v=LlcAHkjbARs
h3h3Productions – warning – Some language
https://www.youtube.com/watch?v=caVEiitI2vg
in light of this, at Sunward we have made some changes:
-a PIN has been added to our cell phone accounts (Bell Mobility)
-replacement SIM cards can only be sent to our address on file
-on domains registrars, we use 2 Step Authentication where possible
-email contact email addresses for domains are not accessible on our cell phones
and common sense:
-we will continue to use strong passwords
-passwords are different for different sites
-we write our passwords down in a binder
And of course, we back up our data.