February 10, 2026
14:00-15:00 (ET)
A Free Zoom Webinar

Ransomware and other cyber attacks have been causing major damages to organizations. While it is of course necessary to eliminate vulnerabilities from an IT perspective, it is difficult to completely prevent attacks through technical measures alone, and the response to them requires a much broader range of business functions. In this webinar, the speakers experienced in actually responding to numerous cyber attacks will discuss significant ransomware and similar threat trends, as well as measures to prepare for and respond to attacks in order to minimize possible damage. We expect CISOs, CIOs, Corporate Communications and Legal/Compliance personnel would find this webinar interesting and informative.

※Please note this webinar will be held primarily in English with auto-generated Japanese subtitles via Wordly

【Target Participants】
●Chief Information Security Officer、Chief Information Officer
●Corporate Communications, Legal/Compliance Functions
This webinar will provide useful information for CISOs, CIOs, Corporate Communications and Legal/Compliance personnel.

【Agenda】
・Opening Remarks [JCCI] (2 mins）
・Remarks：Ezra Borut and Naomi Aoyama (3 mins) (English/Japanese): An introduction to the Japan Practice at Debevoise & Plimpton.
・Seminar（English）：Luke Dembosky and Erez Liebermann （55 mins）

　1. Overview of the cyber ransom eco-system
　2. Case study of a modern ransom incident
　3. What companies are doing to prepare
　4. Q&A

Register Here

Luke Dembosky

Luke Dembosky co-chairs Debevoise & Plimpton’s global Data Strategy & Security Group. He is a trusted advisor to many leading companies on managing cyber risks, responding to cyber incidents, and handling related internal investigations and national security and regulatory defense matters.

Mr. Dembosky is the only U.S. lawyer ranked Band 1 by Chambers both for Privacy and Data Security: Cybersecurity and for Crisis & Risk Management. The Legal 500 US also includes Mr. Dembosky among a select group of “Leading Lawyers” on data privacy and protection. He advises many C-Suites and boards, and is a frequent speaker at leading business, legal practice, and educational events across the country.

Mr. Dembosky joined Debevoise in March 2016 after serving as Deputy Assistant Attorney General for National Security at the U.S. Department of Justice, where he oversaw all national security cyber matters for the agency. His 14 years at DOJ included serving as DOJ’s representative at the U.S. Embassy in Moscow, and as the senior DOJ official on the Target, Sony Pictures, Anthem, and OPM breaches, among many others. His experience also includes close collaboration with Japanese law enforcement while serving as a U.S. prosecutor, including an invitation to lecture at the National Police Academy of Japan on undercover cyber operations. He has co-represented DOJ in cyber negotiations with Russia and China and at the UN Group of Government Experts.

Erez Liebermann

Erez Liebermann is Co-Chair of the firm’s Technology Group, and a core member of our Data Strategy & Security Group. Combining his background as an aerospace engineer, prosecutor, and in-house counsel, his practice focuses on advising major businesses on a wide range of complex, high-impact investigations, incident response, litigation and regulatory matters. He previously served as Chief Counsel, Cybersecurity and Privacy at Prudential Financial, leading a team of lawyers and over 20 investigators in the U.S., Ireland and Japan. Mr. Liebermann has traveled extensively to Japan to counsel businesses on incident response.

Mr. Liebermann previously spent ten years at the Department of Justice and served as Chief of cyber section at the U.S. Attorney’s Office for the District of New Jersey, where he was the lead prosecutor on a number of the nation’s largest cyber prosecutions, including the hackers responsible for breaches into Heartland, NASDAQ, Visa, JC Penney, 7-Eleven, and many others.

In 2023, Mr. Liebermann was appointed by the Chief Justice of the New Jersey Supreme Court to serve on the Court’s AI Committee and is Co-Chair of the Association of Law Insurance Counsel Data and Technology Section. He is an adjunct professor at the University of Texas School of Law – Austin, teaching Cyber Incident Response. Mr. Liebermann is a frequent speaker at leading conferences on cybersecurity and was featured in a Wall Street Journal podcast covering his work at the Department of Justice.

Ezra Borut

Ezra Borut co-chairs Debevoise & Plimpton’s Mergers & Acquisitions Group. He is a trusted advisor to private equity sponsors, corporate clients, and institutional investors on a broad range of U.S. domestic and cross-border transactions, including acquisitions and joint ventures involving major Japanese companies.

Mr. Borut was resident in Debevoise’s Tokyo office for four years, where he served as managing partner, and previously served in the New York office on the firm’s Management Committee, as Deputy Chair of the Corporate Department, and as Co-Chair of the Diversity Committee. He joined Debevoise in 1996 and has a long record of leadership and service within the firm and the legal community.

Naomi Aoyama

Naomi Aoyama is qualified to practice law in Japan as bengoshi as well as in New York. Her practice focuses on international projects, including mergers and acquisitions and joint ventures. Ms. Aoyama has worked in the firm’s New York office for more than 20 years. With extensive experience in handling cross-border transactions and deep understanding of both American and Japanese business practice and culture, she quickly captures clients’ needs and intentions and provides solutions that address them the best. She has experience in various business sectors, including chemical, automotive parts, pharmaceutical and transportation.

Ms. Aoyama was resident in the firm’s Tokyo office for five years. She also spent one year in Tokyo as a secondee to a major Japanese company’s legal division. Prior to joining Debevoise, Ms. Aoyama worked at Nishimura & Asahi (f/k/a Nishimura & Partners) in 1994-1998, and as a Legislative Staff Councilor for the House of Representatives of Japan in 1991-1992. Ms. Aoyama received her LL.B. in 1991 from the University of Tokyo, completed a two-year legal apprenticeship at the Legal Training & Research Institute of the Supreme Court of Japan in 1994 and received her LL.M. in 1999 from the University of Chicago Law School.