John Shier is a Senior Research Scientist at Sophos. John is a popular presenter at security events, and is well-known for the clarity of his advice, even on the most complex security topics. He has researched everything from costly ransomware to illicit dark web activity, uncovering insights needed to strengthen cybersecurity defenses.

John is often consulted by press, and has been quoted in publications like Reuters, WIRED, The Register, Fortune, CNN, The Hill, Fast Co, Yahoo, and more. He’s also a frequent speaker at industry events like RSA Conference, Infosec, GITEX, BSides and more.