Quite a few phishing attacks involve accounts with "noreply" in the name.So.
Block registration of accounts with noreply and inspect currently existing noreply accounts.
~~ i can run a multi-billion dollar corporation better than the current lot ~~
it doesn't protect against protocol design issues
but
well
Snowden leaked information about a backdoored cipher, so everything else must be fine. DUAL_EC_DRBG wasn't used by anyone right?