Is there a backdoor in Truecrypt? (2010)
privacylover.com
privacylover.com
I don't know if Tor considers itself hard to compile, but they recently announced the intent to avoid this issue through deterministic builds[1], so it was interesting to see this mentioned here for TrueCrypt.
[1]: https://blog.torproject.org/blog/deterministic-builds-part-o...