Grumpy Old Geeks Topics Image redaction Topic Image redaction 2 mentions in 1 episode The practice of hiding sensitive information in images, which the hosts discuss alongside ways it can fail. Mentions 81: Congratulations... Now Get Off My Internet! Oct 24, 2014 47:45 Blurring information in a photograph, not so secure. 49:15 If you really want to keep information in a photograph sensitive, black it out.