So that SMS snafu where valentines messages were delivered a yesterday?

https://arstechnica.com/information-technology/2019/11/why-168149-valentines-day-text-messages-arrived-in-november/

This highlights yet another reason not to use SMS as a 2FA if it can be avoided. This is not the only 3rd party carrier to handle your data. Who's to say there's not a trusted insider threat who placed a back door in one of these systems?

#CoSoSec