My initial thought was that they had been hacked, but that does not appear so – the redirect happened several days ago and had it been a hack I would have expected it to be fixed by now. So something more serious seem to be going on. I read and heard several different ideas on what is going on ranging from protest against the XP end of support, Lavabit a like case, to NSA infiltration.
My personal “favorite” is that it is and internal powerstruggle in the Truecrypt team, the team has always been very secretive and roumers are that then internal power balance in the team has not always been the best. It is thus likely that the team somehow ended up imploding and subsequently just abandoned the whole thing.
I do feel that if the case is internal power struggels, then the team defaced their own gravestone, why would you not give a good explanation on your website as to what happened instead of having people be suspicious as to possible NSA infiltration etc.
Shame on you Truecrypt team, this exit is just plain irresponsible, grow up and face the music.
A summery of what is known, a repository of the “original” truecrypt files and some additional useful insights can be found on the GRC website;