Ex-CIA Joshua Schulte Describes His Data/Crypto Hiding Prowess (WikiLeaks Vault 7) "Which brings me to my next point. Do you know what my specialty was at the CIA? Do you know what I did for fun? Data hiding and crypto. I designed and wrote software to conceal data in a custom-designed file system contained within the drive slack space, or hidden partitions. I disguised data. I split data across files and file systems to conceal the crypto. Analysis tools would never detect random or pseudorandom data indicative of potential crypto. I designed and wrote my own crypto. How better to fool buffoons like forensic examiners and the FBI than to have custom software that doesn't fit into their two-week class where they become forensic experts? Make no mistake. I am an expert in data hiding and cryptography with thousands of hours of experience and among the top specialists in the world, or was." From Trial Transcript February 26, 2020 https://cryptome.org/2020/02/schulte-trial-2020-0226.pdf https://cryptome.org/2020/02/schulte-hide-crypto.jpg