Easy way to identify a fake
If an email or SMS message is claiming to be from a government agency, its obviously a fake; governments are too incompetent to use any technology made after 1965; seeing as no politicians seems to know how one of those new-fangled 'comm-poot-ors' work and all.
I worked as a contractor for the Senate for a while, there are far too many senators that have their staff print all their emails so that they can read it, and then have their secretary dictate a response. I personally knew of 5 of them that did that and I heard about several others from the other IT folk while I worked there. One of them is a prominent member of several computer/telecom related committees...