OUR PROFESSIONALS
Associates
Sumit Mallick
Strategic Advisor
Sumit Mallick is an experienced legal and compliance leader with deep expertise in regulatory engagement, public policy, and emerging risks for fintech companies. He graduated from Berkeley Law in 2010 and began his career as a Senior Associate at WilmerHale, focusing on complex litigation and regulatory matters. He later served as an Assistant U.S. Attorney in Washington, D.C., where he prosecuted a wide range of criminal cases.
Sumit went on to become the Global Head of Litigation and Investigations at Stripe, overseeing high-stakes disputes and regulatory matters for the global payments company, before serving as Deputy General Counsel at Chime, a leading consumer fintech. He currently serves as General Counsel of Brex, a global corporate card and spend management company.
Throughout his career, Sumit has advised on high-impact regulatory engagements, shaped public policy strategies, and built compliance- and risk-management frameworks for rapidly scaling businesses in highly regulated industries.
Willis MacDonald
Security Advisor
Willis McDonald is a seasoned cybersecurity and physical security expert with over 30 years of experience in insider-threat investigations, threat intelligence, incident response, and operational security. Willis has led high-impact teams specializing in threat intelligence, offensive operations, digital forensics, and physical security across private industry and within the U.S. government (including the Federal Bureau of Investigation (FBI) and the National Security Agency (NSA)).
As a threat-intelligence leader, Willis tracked nation, state-sponsored malware campaigns and their supporting infrastructure, targeting public and private organizations. At the FBI, he conducted forensic investigations of compromised systems and identified threat actors, directly supporting their apprehension and subsequent prosecution. While at the NSA, he executed offensive operations and developed advanced tools for access and analysis in support of military and intelligence community missions at home and abroad.
Toni Anne Donato
Enterprise Operations
Toni Anne is a senior investigative analyst with more than a decade of experience supporting complex, federal investigations involving financial crime, illicit finance, cybercrime, sanctions evasion, and cryptocurrency-related activity. Currently, Toni Anne serves as an Investigative Analyst with the Board of Governors of the Federal Reserve. Toni Anne supports the Office of Inspector General by briefing leadership, conducting research, analyzing evidence, and reporting in on investigations.
Prior, Toni Anne served as an Investigative Analyst with Defense Criminal Investigative Services (DCIS), providing analytical support to cyber, sensitive investigations, and transnational crime units. She also served with distinction as a Paralegal Specialist with the U.S. Attorney's Office for the District of Columbia and was assigned to the Asset Forfeiture and Money Laundering Section. She supported federal prosecutors and law enforcement on investigations and prosecutions involving fraud, money laundering, cybercrime, illicit use of virtual currency, and national security offenses. She also served as lead paralegal of the National Security Threat Finance section.
Toni Anne's notable casework includes the Welcome to Video case (large cryptocurrency, child pornography, darknet-market takedown), Bitcoin Fog (precedent-setting prosecution of cryptocurrency-money laundering site), and numerous forfeiture actions involving priceless artwork, antiquities, and jet fuel.
Across these roles, she has been a member of multiple Financial Crimes Task Forces, maintained liaison relationships with federal, state, and local agencies, financial institutions, and blockchain companies. Her work has been recognized with numerous awards for investigative excellence, including honors from DHS, FinCEN, DCIS, and the Federal Law Enforcement Foundation.
Akhi Johnson
Scholar in Residence
Professor Akhi Johnson teaches Evidence, Criminal Law, and Criminal Procedure at the University of Massachusetts School of Law.
As a practicing attorney, Professor Johnson served two terms in the U.S. Department of Justice. From 2013-2019, he was an Assistant U.S. Attorney in the Criminal Division for the District of Columbia. As an AUSA, he handled cases in local and federal court and served as a senior sex offense prosecutor. From 2023-2025, he was a civil rights attorney in the Educational Opportunities Section, where he enforced federal statutes to shield students from discrimination based on race, color, sex, national origin, language, religion, or disability.
Professor Johnson was previously the Director of the Vera Institute of Justice's Reshaping Prosecution initiative. At Vera, he managed a team that worked with prosecutors across the country to use research-based approaches to end mass incarceration and improve public safety. Under his leadership, Vera helped multiple prosecutors end pre-textual traffic stops based on research that they undermined public safety.
Professor Johnson clerked for the Honorable Kimberley S. Knowles at D.C. Superior Court, and was an associate at Jones Day's Los Angeles office. He was also an Adjunct Associate Professor at American University Washington College of Law, and taught Street Law courses at the D.C. Jail in partnership with Georgetown Law. Professor Johnson also advised the Biden-Harris transition team on how to implement the Administration's criminal justice platform.
