Debevoise & Plimpton LLP ‘has significant expertise and delivers quality work’, advising global clients on incident response matters and investigations brought by state attorney generals. The firm is experienced advising clients on the SEC cybersecurity rules. Its members include experts on privacy, AI, M&A due diligence and data governance. Both leading the practice, Washington DC-based Luke Dembosky specializes in cyber risk management and internal investigations, while Avi Gesser supports private equity funds, insurance companies and hedge funds in ransomware and nation-state cyber attacks. Erez Liebermann is knowledgeable of data-related regulatory requirements, and Jim Pastore is an expert litigator in the cyber field. Matt Kelly leverages his expertise in governance, compliance and risk management matters relating to AI. Unless otherwise stated, lawyers are based in New York.
Legal 500 Editorial commentary

Accolades

Client satisfaction: Sector knowledge
Client satisfaction: NPS ®

Testimonials

Collated independently by Legal 500 research team.

  • ‘Luke Dembosky and Erez Lieberman both have tremendous experience in the cybersecurity area and are true trusted partners. Their stellar reputation in the cyber legal community is well earned. They provide informed, realistic, and actionable guidance.’

  • ‘The Debevoise cyber team is one of the larger and stronger teams. It has significant expertise and delivers quality work. ’

  • ‘Standout partners include Erez Liebermann and Luke Dembosky.’

Key clients

  • American Express
  • Capital One
  • Glaxosmithkline
  • GoDaddy
  • Microsoft
  • Prudential Financial
  • Securities Industry Financial Markets Association
  • Warner Music Group
  • WPP Group

Work highlights

Advising the leading financial services trade associations on the industry’s comment letter responses to multiple proposed regulations or other requests for comment.
Advising MassMutual in a multidistrict litigation stemming from the MOVEit cyberattack.
Assisting the client with subsidiary Rockstar Games' September 2022 cybersecurity incident and related matter at 2K Games relating to the theft of 4 million records from a support database.

Lawyers

Leading partners

The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Practice head

Luke Dembosky; Avi Gesser

Other key lawyers

Erez Liebermann; Jim Pastore; Johanna Skrzypczyk; Matt Kelly