Sean Gallagher is a Principal Threat Researcher at Sophos, where he investigates trends in cyberattacks and cyber-crime. Previously, he was IT and National Security Editor at Ars Technica, where he focused on information security and digital privacy issues, cybercrime, cyber espionage and cyber warfare. A US Navy veteran, Gallagher has been a security researcher, technology journalist and information technology practitioner for over 20 years