This is a good reminder.
Story is too long to paste and has embedded images that are necessary to it -- https://medium.com/@CodyBrown/how-to-lose-8k-worth-of-bitcoin-in-15-minutes-with-verizon-and-coinbase-com-ba75fb8d0bac
tl;dr -- Dude got hacked, watched as $8000 of bitcoin was stolen, Verizon and Coinbase were no help.
That is pretty fucked up. I will have to rethink some of my security as I use SMS 2FA quite a bit.