Photo of Michael L. Diakiwski


J.D., Georgetown University Law Center; Dean's Certificate

B.S., Providence College

Bar and Court Admissions

District of Columbia Bar

New York Bar

Michael counsels clients on regulatory compliance, legislative issues, responding to government investigations, and national security matters. Michael draws on his experience as an official with the U.S. Department of Homeland Security, where he advised the Secretary and senior leadership on complex legal, political, and national security matters.

Representative Experience

  • Counsels technology companies, critical infrastructure owners, business associations, government contractors, and others on a variety of cybersecurity policy and regulatory compliance matters.
  • Assists in the development of policies and procedures to help clients manage cyber risks, including incident response plans and governance structures.
  • Reviews cybersecurity and national security legislation to help clients navigate complex statutory and regulatory regimes.
  • Assists in responding to congressional and executive agency investigations into security issues and vulnerabilities. 
  • Drafts comments and other submissions to various Executive agencies on issues affecting technology and telecommunications clients.
  • Advises clients on issues related to public safety grant programs.

Before joining Wiley Rein, Michael:

  • Advised on cybersecurity and infrastructure protection, aviation security, international trade, and litigation.
  • Reviewed complex Executive branch agency rules and regulations to advise a Cabinet Secretary on issues and stakeholder concerns.
  • Prepared subpoenaed witnesses and coordinated responses to congressional investigations, Inspector General Reports, and U.S. Government Accountability Office Reports.
  • Coordinated an interagency fraud task force made up of U.S. Department of Justice and U.S. Department of Homeland Security officials.
  • Participated in foreign investment review under the CFIUS process.
  • Successfully advocated for an asylum-seeker in immigration court.

Professional Experience

  • U.S. Department of Homeland Security
    • Counselor to the Secretary (2016-2017)
    • Attorney-Advisor and Special Assistant to the General Counsel (2015)
    • Confidential Assistant to the General Counsel (2014-2015)
  • Associate, Private Law Practice (2014)
  • Law Clerk, U.S. Senate Committee on the Judiciary (2013)
  • Intern, The White House, Presidential Personnel Office (2012-2013)
  • Law Clerk, U.S. Department of Justice
    • Environment and Natural Resources Division (2012)
    • Office of the U.S. Pardon Attorney (2012)
  • Legal Intern, New York State Attorney General’s Office, Litigation Bureau (2011)


  • American Bar Association
  • New York State Bar Association
  • Federal Communications Bar Association
  • Alumni Admissions Interviewer, Georgetown University Law Center (2014-Present)
  • Member, White House National Security Leadership Workshop (2016)
  • Graduate, Presidential Appointee Leadership Program (2015)
  • Graduate, U.S. Department of Homeland Security Law Training Program (2015)
  • Finalist, Presidential Management Fellowship (2014)
  • Junior Board Member, Don Bosco Cristo Rey High School

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