Sidley Austin LLP

Privacy and Cybersecurity

Partner

DAVID LASHWAY is widely recognized as a leading adviser for national security, crisis management, cybersecurity, data security incidents, misinformation, trade secret theft, and related investigation and litigation matters. Advocacy on behalf of his clients has earned him numerous acknowledgements, including a Band 1 ranking in Chambers USA (2021-2023) and Chambers Global (2022-2024) for Privacy & Data Security: Incident Response. David co-chairs the firm’s esteemed Privacy and Cybersecurity practice, and is a member of the firm’s Executive Committee. David also serves as a member of the firm’s top-ranked Crisis Management and Strategic Response group.

With more than 25 years of experience, David has advised a diverse range of private and public organizations on significant and material cybersecurity incidents across almost every critical infrastructure sector, including financial services, energy, manufacturing, technology, water, defense, municipal government, retail, transportation, and hospitality industries. He has significant experience in addressing election security and misinformation-related issues. He has served as the lead lawyer advising on the legal response to operationally impactful malware for a number of Fortune 500 entities, and led the incident response, associated investigations and litigations for several companies impacted by the NotPetya malware incident. He routinely leads responses to ransomware-related matters and is at the forefront of emerging issues posed by AI and generative AI-related technologies.