Baker & McKenzie LLP
09/10/2025 | Press release | Distributed by Public on 09/10/2025 03:13
Baker McKenzie Adds Highly Regarded Cyber and National Security Lawyer Sumon Dantiki in Washington, DC
Leading global law firm Baker McKenzie announced today that former US Department of Justice official Sumon Dantiki has joined the Firm's Washington, DC office as a partner in its Litigation and Government Enforcement Practice and co-chair of the National Security Practice. Sumon is a distinguished cyber, national security, and investigations lawyer with deep experience with matters at the intersection of technology, security and legal risk.
A leading global cybersecurity practitioner, Sumon's practice focuses on sensitive, multi-dimensional investigations, disputes and counseling, especially ones with cybersecurity, national security, and cross-border aspects. Sumon helps multinational clients prevent and address critical risks to their business interests, including data breaches, insider threats, transactional and compliance risks, ransomware attacks, whistleblower complaints, and complex fraud.
Sumon previously served as the cyber advisor to the Director of the US Federal Bureau of Investigation (FBI), where he counseled FBI leaders on sophisticated nation-state, cyber, insider, and espionage threats facing the US. This included assisting the Director of the FBI in oversight of intelligence and criminal investigations as well as working with the National Security Council and other intelligence, law enforcement, and security agencies in responding to data breaches, insider threats, economic espionage, foreign investment risks, ransomware attacks, and other major criminal and security threats. Sumon helped oversee responses to congressional committees, including preparing the Director for over 20 appearances before House and Senate committees, the Inspector-General's office, and other oversight bodies.
Sumon also served as trial attorney with the US Department of Justice's Computer Crime and Intellectual Property Section and as a Special Assistant US Attorney for the District of Maryland.
"As national security related matters, particularly global cyber threats, escalate in complexity and scale, clients are looking for trusted advisors who can navigate both the technical and geopolitical dimensions of risk," said Widge Devaney, Americas Chair of Baker McKenzie's Dispute Resolution Practice. "Sumon's deep experience across the DOJ, the FBI, and private practice positions him perfectly to help clients anticipate, respond to, and mitigate these challenges across jurisdictions. We are thrilled to add him to our team."
Sumon will serve as Co-Chair of Baker McKenzie's National Security Practice. He joins Baker McKenzie from private practice, following the arrival of former US Deputy Attorney General Rod Rosenstein, who also serves as Co-Chair of the practice.
Added Colin Murray, Baker McKenzie's Americas Chief Executive Officer, "Sumon's impeccable reputation and credentials speak for themselves - he is an outstanding addition to our team. Now more than ever companies need integrated guidance across borders to protect their business against emerging threats. Sumon is the trusted advisor who brings nuanced advice and a global view so our clients can navigate these growing risks."
"Sumon is one of Washington's most respected voices in cybersecurity and national security concerns," said Maurice Bellan, Managing Partner of Baker McKenzie's Washington, DC office. "He joins our growing team of former senior-level government lawyers advising our clients across a range of risks in an increasingly tense business and geopolitical environment."
Baker McKenzie's National Security Practice offers comprehensive legal services to clients in all industries to address the panoply of legal risks related to US government oversight, enforcement, and national security concerns. The team provides strategic advice, counseling, and representation on a broad range of enforcement, investigation, regulatory, and compliance matters, including FCPA, Anti-Money Laundering, sanctions and export control, customs and import compliance, CFIUS and foreign investment, cybersecurity and data privacy, as well as crisis management and reputational risk.
Sumon is the latest former senior government official to join Baker McKenzie in Washington, DC. In addition to Rod Rosenstein, the Firm has added former DOJ trial lawyer Tim Finley, former US Treasury official Scott Levine, and former Internal Revenue Service advisor Donna McComber.
Baker McKenzie's Litigation and Government Enforcement Practice is the North American component of the firm's worldwide Dispute Resolutions Practice, one of the most recognized and largest globally, with more than 1,000 disputes lawyers across its more than 70 locations. The team is comprised of battle-tested, globally minded litigators with deep roots in their home jurisdictions. Consistently top-ranked by leading market reviews, the firm frequently handles cases involving novel and precedent-setting issues in countries around the world.
Sumon commented, "Multinational companies are increasingly looking for integrated, global cybersecurity counseling as well as assistance with investigations that cross multiple jurisdictions and a variety of regulatory and investigative authorities. Baker McKenzie offers an unmatched global platform to serve clients fully in addressing sensitive and sophisticated security and enforcement risks. I'm excited about joining the team."
About Sumon Dantiki
Sumon received his BA from the University of Michigan, where he graduated Phi Beta Kappa and was a Dean's Merit Scholar. He received his JD from Yale Law School, where he was the winner of the Potter Stewart Prize. He clerked for the US District Court for the Southern District of New York and the US Court of Appeals for the Second Circuit. He is licensed to practice in Illinois and Washington, DC.
Sumon has been recognized as a leading global cyber practitioner, including by the Financial Times in its 2023 Innovative Lawyers report. A respected authority on cyber and national security topics, Sumon is often quoted in top-tier business and legal press on a range of cybersecurity topics including cyberattacks, encryption, espionage and ransomware attacks.
A leading global cybersecurity practitioner, Sumon's practice focuses on sensitive, multi-dimensional investigations, disputes and counseling, especially ones with cybersecurity, national security, and cross-border aspects. Sumon helps multinational clients prevent and address critical risks to their business interests, including data breaches, insider threats, transactional and compliance risks, ransomware attacks, whistleblower complaints, and complex fraud.
Sumon previously served as the cyber advisor to the Director of the US Federal Bureau of Investigation (FBI), where he counseled FBI leaders on sophisticated nation-state, cyber, insider, and espionage threats facing the US. This included assisting the Director of the FBI in oversight of intelligence and criminal investigations as well as working with the National Security Council and other intelligence, law enforcement, and security agencies in responding to data breaches, insider threats, economic espionage, foreign investment risks, ransomware attacks, and other major criminal and security threats. Sumon helped oversee responses to congressional committees, including preparing the Director for over 20 appearances before House and Senate committees, the Inspector-General's office, and other oversight bodies.
Sumon also served as trial attorney with the US Department of Justice's Computer Crime and Intellectual Property Section and as a Special Assistant US Attorney for the District of Maryland.
"As national security related matters, particularly global cyber threats, escalate in complexity and scale, clients are looking for trusted advisors who can navigate both the technical and geopolitical dimensions of risk," said Widge Devaney, Americas Chair of Baker McKenzie's Dispute Resolution Practice. "Sumon's deep experience across the DOJ, the FBI, and private practice positions him perfectly to help clients anticipate, respond to, and mitigate these challenges across jurisdictions. We are thrilled to add him to our team."
Sumon will serve as Co-Chair of Baker McKenzie's National Security Practice. He joins Baker McKenzie from private practice, following the arrival of former US Deputy Attorney General Rod Rosenstein, who also serves as Co-Chair of the practice.
Added Colin Murray, Baker McKenzie's Americas Chief Executive Officer, "Sumon's impeccable reputation and credentials speak for themselves - he is an outstanding addition to our team. Now more than ever companies need integrated guidance across borders to protect their business against emerging threats. Sumon is the trusted advisor who brings nuanced advice and a global view so our clients can navigate these growing risks."
"Sumon is one of Washington's most respected voices in cybersecurity and national security concerns," said Maurice Bellan, Managing Partner of Baker McKenzie's Washington, DC office. "He joins our growing team of former senior-level government lawyers advising our clients across a range of risks in an increasingly tense business and geopolitical environment."
Baker McKenzie's National Security Practice offers comprehensive legal services to clients in all industries to address the panoply of legal risks related to US government oversight, enforcement, and national security concerns. The team provides strategic advice, counseling, and representation on a broad range of enforcement, investigation, regulatory, and compliance matters, including FCPA, Anti-Money Laundering, sanctions and export control, customs and import compliance, CFIUS and foreign investment, cybersecurity and data privacy, as well as crisis management and reputational risk.
Sumon is the latest former senior government official to join Baker McKenzie in Washington, DC. In addition to Rod Rosenstein, the Firm has added former DOJ trial lawyer Tim Finley, former US Treasury official Scott Levine, and former Internal Revenue Service advisor Donna McComber.
Baker McKenzie's Litigation and Government Enforcement Practice is the North American component of the firm's worldwide Dispute Resolutions Practice, one of the most recognized and largest globally, with more than 1,000 disputes lawyers across its more than 70 locations. The team is comprised of battle-tested, globally minded litigators with deep roots in their home jurisdictions. Consistently top-ranked by leading market reviews, the firm frequently handles cases involving novel and precedent-setting issues in countries around the world.
Sumon commented, "Multinational companies are increasingly looking for integrated, global cybersecurity counseling as well as assistance with investigations that cross multiple jurisdictions and a variety of regulatory and investigative authorities. Baker McKenzie offers an unmatched global platform to serve clients fully in addressing sensitive and sophisticated security and enforcement risks. I'm excited about joining the team."
About Sumon Dantiki
Sumon received his BA from the University of Michigan, where he graduated Phi Beta Kappa and was a Dean's Merit Scholar. He received his JD from Yale Law School, where he was the winner of the Potter Stewart Prize. He clerked for the US District Court for the Southern District of New York and the US Court of Appeals for the Second Circuit. He is licensed to practice in Illinois and Washington, DC.
Sumon has been recognized as a leading global cyber practitioner, including by the Financial Times in its 2023 Innovative Lawyers report. A respected authority on cyber and national security topics, Sumon is often quoted in top-tier business and legal press on a range of cybersecurity topics including cyberattacks, encryption, espionage and ransomware attacks.
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