[goalieca]

The "Not Secure Anymore" message likely refers to the weak password based key derivation function and verification steps. I suspect the NSA and other advanced computing groups had means to brute force it and it took the rest of us years to figure out the parameters weren't strong enough.

[autoexec]

The alternate theory was that the NSA forced the project to shutdown or become backdoored because they couldn't break it, and that was deemed unacceptable, resulting in the author deciding to call it quits (lavabit style) rather than compromise the application. The question then becomes "why is VeraCrypt allowed to exist"