Today a major vulnerability in the WPA2 protocol was makde known. WPA (WiFi Protected Access) is used to connect to WiFi networks, and this vulnerability almost completely removes the "P" part of the protocol. Pretty much all current implementations are known to be compromised, including the Android operating system.
My current phone is a Samsung Galaxy SIII, model SGH-I337M.
What's the best way to alert the technical team at Fido about this, so they can update Android when a fix becomes available (there maybe one already) and push to out to affected devices?
KRACK vulnerability has nothing to do with the carrier, but with your device manufacturer and OS supplier.
Unfortunately, some old (2yrs) devices will never see a patch unless they are made by the fruity comp.
The updated is not up to Fido, first Google needs to fix it then manufacturers like Samsung will implement the update then it gets to Fido. Unless Samsung implements the update for this phone there is nothing Fido can do.
Just so you are aware in case you will be tracking if Samsung will implement the update once it's available from Google you need to make sure it's available for your specific model because Samsung makes different variants of this phone.