The encrypted files were decrypted and translated. Later plaintext blocks are decrypted normally. All files are encrypted before being uploaded and decrypted on the client after downloading. Kr00k is a security vulnerability that allows some WPA2 encrypted WiFi traffic to be decrypted. Software that supports M2TS files usually works only with decrypted or unencrypted files. If the connection is encrypted, the buffer is decrypted in-place. Likewise, for each write the block must be decrypted, altered, and re-encrypted. During the war, British cryptologists decrypted a vast number of messages enciphered on Enigma. These messages have to be decrypted in order to be understandable or usable for someone. In this way the old data cannot be read anymore, as it cannot be decrypted. The program code is then decrypted at run time via the security cartridge. The eventual flow of intercepted and decrypted information was tightly and capriciously controlled. By the end of the war, ISK had decrypted and disseminated 140,800 messages. When the final layer is decrypted, the message arrives at its destination. When the device is decrypted, it unleashes a virus that compromises the CIA.