
Partner
David C. Lashway
Privacy and Cybersecurity
White Collar: Government Litigation and Investigations
Crisis Management and Strategic Response
White Collar: Government Litigation and Investigations
Crisis Management and Strategic Response
DAVID LASHWAY is co-chair of Sidley’s highly ranked global Privacy and Cybersecurity practice and a member of the firm’s top ranked Crisis Management and Strategic Response team. He is acknowledged as one of the leading lawyers for crisis management, cybersecurity, data security incidents, misinformation, trade secret theft, and related investigation matters. He has advised 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, and was deeply involved in the investigations into the 2016 and 2020 actions targeting various U.S. political parties. 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.
David has been regularly named as one of leading lawyers in surveys of the best lawyers for cybersecurity globally. In a recent ranking, The Legal 500 noted that clients describe him as “a brilliant lawyer and strategist. He is very intelligent and his performance in front of boards and management teams have been some of the best I have ever seen.” Another client noted that “David Lashway is exceptionally knowledgeable and conversant in cyber incident response, cyber threat intelligence, legislation and authorities’ issues, and national security matters.” Chambers Global has ranked David for Privacy & Data Security and Privacy & Data Security: Incident Response (USA) (2019–2023) and he is recognized as a leading lawyer in incident response in Chambers USA (2022–2023), receiving a Band 1 ranking in Cyber Incident Response. He has been included on the list of leading Incident Response Lawyers since its inception, and is a sought-after speaker related to cybersecurity and national security matters.
David has led due diligence on some of the largest recent corporate transactions, and regularly advises companies through complex CFIUS issues. He has also served as lead counsel on matters for organizations facing difficult regulatory, congressional, and public policy issues across a range of industry sectors and subjects. David is fluent in multiple languages and regularly handles matters involving the global intelligence community and law enforcement.
David has been regularly named as one of leading lawyers in surveys of the best lawyers for cybersecurity globally. In a recent ranking, The Legal 500 noted that clients describe him as “a brilliant lawyer and strategist. He is very intelligent and his performance in front of boards and management teams have been some of the best I have ever seen.” Another client noted that “David Lashway is exceptionally knowledgeable and conversant in cyber incident response, cyber threat intelligence, legislation and authorities’ issues, and national security matters.” Chambers Global has ranked David for Privacy & Data Security and Privacy & Data Security: Incident Response (USA) (2019–2023) and he is recognized as a leading lawyer in incident response in Chambers USA (2022–2023), receiving a Band 1 ranking in Cyber Incident Response. He has been included on the list of leading Incident Response Lawyers since its inception, and is a sought-after speaker related to cybersecurity and national security matters.
David has led due diligence on some of the largest recent corporate transactions, and regularly advises companies through complex CFIUS issues. He has also served as lead counsel on matters for organizations facing difficult regulatory, congressional, and public policy issues across a range of industry sectors and subjects. David is fluent in multiple languages and regularly handles matters involving the global intelligence community and law enforcement.
Capabilities
SERVICES AND INDUSTRIES
- Aviation and Airlines
- Crisis Management and Strategic Response
- Privacy and Cybersecurity
- White Collar Defense and Investigations
- Big Data, Internet of Things and Artificial Intelligence
- Compliance Counseling - White Collar
- Congressional Investigations
- Consumer Protection and Unfair Trade Practices
- Corporate Risk Management and Critical Matters
- Cybersecurity, Cybercrime and Data Breaches
- EU and International Privacy
- False Claims Act
- Financial Information and Privacy Law
- Grand Jury Investigations
- Healthcare Information and Privacy
- Information Security and Data Breaches
- Internal Investigations
- Internet, Social Media and E-Commerce
- IT Procurement and Outsourcing
- Media and Entertainment Crisis Management and Strategic Response
- Technology, Media and Privacy Law
News & Insights
Credentials
Admissions & Certifications
- U.S. Supreme Court
- U.S. Court of Federal Claims
- U.S. Court of Appeals, 1st Circuit
- U.S. Court of Appeals, 3rd Circuit
- U.S. Court of Appeals, D.C. Circuit
- U.S. District Court, District of Columbia
- District of Columbia
- District of Columbia Court of Appeals
- New York
- New York Court of Appeals
Education
- Vermont Law School, J.D., 1996
- Vermont Law School, M.S., 1996
- Dickinson College, B.A., 1993
Languages
- Italian
- Spanish