Greg Day


Greg Day

Vice President and Regional Chief Security Officer, EMEA

Greg Day is VP and Chief Security Officer for Europe, Middle East, Africa at Palo Alto Networks.

He is a respected thought leader and advocate for stronger proactive cybersecurity, who has lived and breathed cybersecurity since the dawn of the industry. In fact, he developed his own behavioural security solution as long ago as 1995.

His personal mission is about increasing the understanding of the challenges and opportunities from how cybersecurity empowers organisational change and growth. Greg’s desire to educate organisations on these issues stems from many years working at the frontline of cybersecurity prevention and remediation as a former CLAS information security consultant vetted by the UK government and a leader of several consultancy practices. Wanting to give back to the industry, for over 20 years he has worked closely with many law enforcement agencies on improving the prevention and detection of cybercriminal behaviour. This has included previously teaching malware forensics to agencies around the world, as well as working in advisory capacities for the Council of Europe on cybercrime, the UK National Crime agency, and currently sitting on the Europol cyber security industry advisory board.

Greg’s passion -after flying drones, golf and skiing – is building stronger mutual understanding between non-technical and cybersecurity leaders within organisations.

As part of Palo Alto Network’s Office of the CSO team, Greg is a regular writer and contributor of essays and blogs on cybersecurity issues, as well as a keynote speaker and expert panellist on industry forums across EMEA.

On policy, Greg acts an industry advisor within many crucial cybersecurity organisations, including being the former vice chair of TechUK Cybersecurity Working Group, given evidence both in the UK Parliament and Brussels, and at the World Economic Forum in Davos.