 As its developers remained anonymous, some of Le Roux's former SecurStar colleagues, including Hafner, suspected Le Roux of being involved but could not find any corroborating evidence.The actual authors remain unknown as of 2017.According to Matthew Green, a computer science professor at the Johns Hopkins Information Security Institute and leader of the TrueCrypt audit in 2014, TrueCrypt "was written by anonymous folks; it could have been Paul Le Roux writing under an assumed name, or it could have been someone completely different."