Asked to give his opinion on what is the best or the most secure browser, operating system, or antivirus, Schneier says he is an agnostic: “They are all equally mediocre.”
Schneier argues that most people choose their operating system based on non-security concerns such as features, design, and usability. Although he concedes that he uses Windows while his wife uses a Mac, he is quick to add that he considers all operating systems essentially equal from a security standpoint — provided users take basic precautions and follow good security hygiene.