Mark Deem is a partner at Wiggin LLP, where he leads the litigation team and technology sector. He is a commercial litigator, with considerable experience of complex domestic and cross-border litigation, international arbitration and regulatory matters. Mark focuses on technology, media and telecommunications (TMT) litigation, contentious privacy, data protection and cybersecurity issues and financial services disputes. He has particular experience in a variety of industry sectors, including aviation and aerospace, communications, digital, TMT and banking and finance. He is a regular speaker on the topic of data, cybersecurity and AI and is the author of "AI on Trial" (published Bloomsbury Professional, second edition Summer 2025), Editor of the Global Data Review’s Guide to Data as a Critical Asset; and contributor to “Cyber Security: Law and Guidance” (2nd Edition published Bloomsbury Professional, February 2025)