Toby Lewis is a cybersecurity and threat intelligence specialist whose career spans UK national security, incident response and commercial cyber defence. His experience includes leading threat analysis at Darktrace and serving in the UK's National Cyber Security Centre, where he held responsibility in incident management. His work focuses on the behaviour of cyber adversaries and on how organisations can turn threat information into decisions.
Lewis worked within the UK intelligence and security environment before moving into private-sector cybersecurity. That background placed him close to the operational realities of state activity, criminal campaigns and major incidents affecting organisations beyond government. At Darktrace, he communicated emerging threats and the implications of artificial intelligence for both attackers and defenders, connecting technical evidence with business-level risk.
His distinctive perspective lies in the bridge between intelligence and executive action. Cybersecurity conversations often separate technical control from leadership judgment; Lewis brings them together by asking what an organisation knows about itself, what an adversary is likely to seek and how assumptions survive contact with an incident. He also addresses the limits of prediction and the importance of recovery when prevention is incomplete.
For leaders, this matters because cyber risk now reaches operations, reputation, supply chains and strategic autonomy. Boards do not need to become security engineers, but they do need a clear view of exposure, ownership and response. Lewis helps audiences interpret a shifting threat environment, challenge false confidence and build the relationships and decision processes required when a cyber event becomes an organisational crisis.