About ZwillGen

ZwillGen has built a strong practice counseling the nation’s leading technology and media companies and handling their highest profile online legal issues.

Following years of running practice groups at the nation’s largest lawfirms, ZwillGen was founded on the principle of delivering thoughtful and practical solutions more efficiently. Today, ZwillGen offers unique services from a team of highly specialized attorneys, some of whom have spent the last 20 years developing their knowledge and experience with leading clients, firms, and issues. In addition, ZwillGen makes legal advice more accessible to its clients by offering alternatives to the traditional hourly law firm model including innovative approaches that directly align firm incentives with client success.

Our Clients

The firm represents prominent Internet companies, media companies, Internet service providers, app developers, social networking sites, sharing economy companies, wireless carriers, video game publishers, fantasy sports providers, Internet and computer security firms, hedge funds, and a variety of traditional brick and mortar businesses in
connection with their online practices.

Blog Contributors

Adya Baker

About 

Adya Baker’s practice focuses on representing clients on a wide range of litigation matters including complex commercial litigation, class actions, government investigations, and antitrust litigation. Adya represents clients in federal appeals court, federal district court, as well as several state courts at every stage of litigation from case inception and negotiation through trial and appeal. She has represented and counseled clients in a wide-variety of industries, including the software, manufacturing, and healthcare industries.

Alexei Klestoff

About 

Alexei Klestoff’s practice focuses on representing clients in a variety of privacy, consumer protection, and e-commerce matters through counseling, litigation, responding to FTC and state Attorneys General investigations, and developing compliance programs. Alexei advises clients on methods to mitigate legal risks associated with new products and services, and also represents clients in complex litigation and regulatory investigations involving false advertising, unfair competition, and privacy claims.

Anna Hsia

About 

Anna Hsia maintains a diverse practice litigating complex business disputes and counseling clients on privacy issues. With broad litigation experience in unfair competition, false advertising, class actions, and other complex litigation, Anna guides clients through disputes in federal and state courts. As a Certified Information Privacy Professional, Anna has assisted clients with product development and compliance with privacy regulations such as the TCPA, HIPAA, COPPA, state-specific privacy regulations, the Gramm-Leach-Bliley Act, and the Fair Credit Reporting Act.

Ariel Oxman

About 

Ariel is a Fellow at ZwillGen. Prior to joining ZwillGen, she served as an Oversight Fellow with Senator Elizabeth Warren. Alongside the Senator’s Oversight and Investigations staff, Ariel drafted letters and created staff reports to question government agencies and private corporations on alleged illegal conduct or fraud concerning data breaches, consumer protection, and Executive Branch conflicts of interest.

Bart Huff

About 

Bart's practice focuses on representing clients on many areas related to online content and services, including criminal and internal investigations, internet privacy and security litigation, theft of trade secrets, compliance obligations relating to the use and disclosure of customer and subscriber information, and gaming law. Before ZwillGen, Bart was an AUSA in Chicago, prosecuting federal crimes including white collar fraud, securities and other regulatory violations, and computer and internet related crimes. Bart tried 18 jury trials and briefed and argued numerous appeals before the Seventh Circuit.

Charlotte Kress

About 

Charlotte is a ZwillGen Fellow. Prior to working at ZwillGen, Charlotte was the Elise Berkower Memorial Fellow at the Future of Privacy Forum in Washington, D.C., where she specialized in advertising technology and European privacy law. Last fall, she also spent time working at ZwillGen on CCPA-related matters.

Daniel de Zayas

About 

Prior to joining ZwillGen, Daniel attended the American University Washington College of Law, where he focused his studies on technology, e-commerce, and privacy law. Daniel returns to ZwillGen as a Fellow after having been the first Summer Legal Intern in the Washington, D.C. office.

Everett Monroe

About 

Everett counsels clients on a range of product development, transactional, privacy, and data security issues involving state, federal, and international data protection laws and frameworks. His clients include entrepreneurs, cloud computing companies, and multinational corporations.

Jake Sommer

About 

Jacob Sommer's practice focuses on legal issues related to Internet-based services and social networking, with a focus on protecting client's rights in litigation or government investigations involving the Copyright Act, Lanham Act, Digital Millennium Copyright Act ("DMCA"), Electronic Communications Privacy Act (“ECPA”), the Wiretap and Communication Acts, CAN-SPAM, FISA and federal and state laws governing Internet gambling. He also helps social networks, search engines, e-mail providers, ISPs and other clients fulfill their compliance obligations pertaining to the discovery and disclosure of customer and subscriber information.

Jane Rosen

About 

Jane Rosen’s practice focuses on data privacy, data protection, and technology-related issues. As a Certified Information Privacy Professional (CIPP/US), she advises clients on their legal obligations under applicable privacy laws and regulations, as well as strategies for managing compliance and risks. She has a strong background in transactional contexts such as mergers and acquisitions, joint ventures, financings, restructurings, capital markets offerings and various commercial, licensing and services arrangements.

Jason Wool

About 

Jason Wool’s practice focuses on cybersecurity, including cyber risk management, incident response, and compliance with global data protection laws, regulations, and standards, including the PCI-DSS. He has advised organizations ranging from small businesses to Fortune 500 companies during complex, privileged computer crime investigations; provided ongoing advice on the development of cybersecurity programs and cybersecurity governance structures; conducted tabletop exercises and other data breach simulations; and assisted clients with large scale audits to determine compliance with complex cybersecurity standards.

Jeff Landis

About 

Jeff’s practice focuses on representing clients in litigation and government investigations, with a particular focus on defending companies in complex class action lawsuits. He also assists clients in responding to formal investigations and informal inquiries conducted by the FTC, DOJ and states’ Attorney General Offices. Jeff has extensive experience in all aspects of civil litigation, including serving as trial counsel for both plaintiffs and defendants in matters pending before judges, juries, and arbitration panels.

Jon Frankel

About 

Jon Frankel has been advising clients on privacy, data security, e-commerce, intellectual property and litigation matters for more than 15 years. Jon provides practical advice to mitigate privacy and data security risks and helps clients navigate a myriad of complex data collection, use and sharing cases. Jon advises on health and children’s privacy; email, SMS and telemarketing; mobile applications; user generated content; contests, promotions, and sweepstakes, online gaming; and requests from law enforcement. Prior to joining ZwillGen, Jon was a partner in the Washington, D.C. office of Bingham McCutchen, LLP, where he co-chaired the Privacy and Security Group.

Kandi Parsons

About 

Kandi counsels clients on privacy and data security issues, online and general advertising, and marketing practices, including COPPA compliance, student privacy, and the Internet of Things. Kandi advises companies on collecting, protecting, and using consumer data and helps them develop and implement comprehensive privacy and security programs. Drawing on her tenure at the FTC, Kandi assists clients in responding to FTC and state AG enforcement actions. Prior to joining ZwillGen, Kandi spent eight years in the FTC’s Division of Privacy and Identity Protection. While at the FTC, Kandi served on detail for six months to the United States Senate, Committee on Commerce, Science, and Transportation.

Kelsey Harclerode

About 

Kelsey Harclerode’s practice focuses on representing clients in complex litigation matters in federal and state court and counseling clients on privacy, security, and consumer protection matters. She helps companies from a wide range of industries, including the software, telecommunications, and social media industries.

Ken Dreifach

About 

Ken counsels clients on complex issues involving information privacy and data law, online liability, consumer regulatory and gaming law, including regulatory response, and adherence to self-regulatory guidelines for online advertising. Ken has had more than twenty years of experience in high-profile regulatory, in-house and private practice roles, including as Chief of the New York Attorney General’s Internet Bureau. He is one of the nation’s leading authorities on the relationship between emerging advertising technologies and online privacy.

Lisa Page

About 

Lisa Page has more than a dozen years of federal law enforcement experience. A former federal prosecutor, Lisa prosecuted organized crime cases before joining the FBI’s Office of General Counsel, where she handled sensitive and complex national security matters. She ultimately served as the Special Counsel to the Deputy Director, assisting him in running the FBI’s day-to-day operations.

At ZwillGen, Lisa advises clients on demands for user data in criminal, civil, and national security matters, leads internal investigations, conducts law enforcement outreach on behalf of tech companies, and helps prepare company witnesses for testimony and trial.

Liz DeYoung

About 

Liz DeYoung has more than a decade of combined experience in private and government practice. Liz advises clients regarding demands for user data under ECPA, the CLOUD Act and data localization issues, engagement with law enforcement authorities (both within and outside of the United States), and other matters concerning cross-border access to data. She also provides a range of corporate governance, transactional, and commercial contracting advice to clients.

Marc Zwillinger

About 

Marc is the founder and managing member of ZwillGen PLLC and has been regularly providing advice and counsel on issues related to the increasingly complex laws governing Internet practices, including issues related to Electronic Communications Privacy Act (“ECPA”), the Wiretap and Communication Acts, privacy, CAN-SPAM, FISA, spyware, adware, Internet gambling and adult-oriented content. He also helps Internet Service Providers and other clients comply with their compliance obligations pertaining to the discovery and disclosure of customer and subscriber information.

Marci Rozen

About 

Marci counsels companies on a wide variety of issues involving privacy, cybersecurity, and information law. She routinely helps companies evaluate and develop corporate privacy and information security programs, and provides advice on matters involving cross-border data transfers, insider threat prevention and detection, cloud computing, and electronic surveillance. Marci also assist clients in responding to data breaches, including issuing breach notifications required under state and federal breach notification laws, advising on remediation efforts, and handling litigation and enforcement actions arising from data security incidents.

Marielena Reyes

About 

Prior to joining ZwillGen, Marielena served as a law clerk for NTIA at the Department of Commerce and the Cybersecurity and Communications Reliability Division at the FCC, where she worked with attorneys on issues related to consumer privacy, data protection, 5G deployment, international and domestic compliance issues, and emerging technologies. In addition, Marielena worked for American University’s Gluskko-Samuelson Intellectual Property Law Clinic, where she drafted privacy policies and terms of use agreements for nonprofit organizations and startups.

Mario Trujillo

About 

Mario completed a clerkship for the Honorable Magistrate Judge Diana Song Quiroga on the U.S. District Court for the Southern District of Texas. He graduated from Georgetown University Law Center in 2019, where he was a survey editor for the American Criminal Law Review and a research assistant for the Institute for Technology Law & Policy. Mario spent his summers with the Electronic Privacy Information Center and the Federal Communications Commission’s Media Bureau.

Prior to law school, he worked as a technology reporter for The Hill newspaper. Mario majored in Journalism and Philosophy at the University of New Mexico.

Mason Weisz

About 

Mason helps clients navigate a constantly shifting web of domestic and international laws regulating data collection, marketing, data sharing, computer crime, data security, electronic surveillance, online content, children’s privacy, financial privacy, information management, and other areas of privacy and Internet law. A former web designer, he has extensive experience with issues relating to digital media, new technology and e-commerce.

Melissa Maalouf

About 

Melissa Maalouf’s practice focuses on advising a broad range of clients, from start-ups to established companies, on both U.S. and international data privacy and security issues. Melissa assists clients in drafting appropriate website disclosures, implementing legally-compliant e-commerce flows, responding to FTC Section 5 and state AG enforcement actions, analyzing advertising claims, and children’s online privacy and safety issues. She also regularly helps clients obtain certification under the EU-US Safe Harbor and navigate compliance with divergent international privacy laws.

Nick Jackson

About 

Nick’s practice focuses on representing clients in complex litigation in federal and state courts, including the defense of class action lawsuits. Nick has represented clients in matters involving federal privacy statutes, constitutional privacy rights, intellectual property, contractual disputes, and federal and state securities laws. He also assists clients in responding to investigations by federal and state regulators, as well as handling demands for user data. In addition, he has counseled clients on the privacy, intellectual property and litigation-related aspects of significant commercial transactions.

Nur Lalji

About 

Prior to joining ZwillGen, Nur attended Georgetown University Law Center, where she served as a research assistant for the Georgetown Center on Privacy & Technology and as the Senior Legal News Editor for the Georgetown Law Technology Review. She also participated in the Law Center’s Federal Legislation Clinic, where she worked in conjunction with MIT students to develop novel privacy legislation.

Nury Siekkinen

About 

Nury's practice focuses on litigating complex commercial cases in federal, state, and bankruptcy courts, including defending companies against class action lawsuits. She has represented clients in matters involving the Electronic Communications Privacy Act (“ECPA”), the Video Privacy Protection Act (“VPPA”), Michigan Video Rental Privacy Act (“VRPA”), the Illinois Biometrics Information Privacy Act (“BIPA”), and state privacy and unfair competition laws. Nury also advises clients on matters related to overseas litigation and foreign criminal investigations.

Plamena Gerovska

About 

Prior to joining ZwillGen, Plamena served as a Privacy Analyst at Promontory Financial Group, an IBM company, where she assisted attorneys on compliance with the EU General Data Protection Regulation (“GDPR”), Russian data localization laws and other international privacy laws. Before that, Plamena spent a summer interning at different London law firms supporting the technology teams on issues related to the UK data protection laws and international data transfers.

Stacey Brandenburg

About 

Stacey advises clients on a wide range of privacy and data security issues. A veteran of the Federal Trade Commission’s Division of Privacy and Identity Protection, Stacey assists clients in responding to FTC investigations involving potential violations of Section 5 of the FTC Act, the FTC’s advertising guidelines, and the Children’s Online Privacy Protection Act (COPPA). She also helps clients respond to investigations by State Attorneys General. Stacey helps clients implement sound security and privacy practices and provides compliance training to employees. Stacey is on the faculty at American University’s Washington College of Law, where she teaches on technology and privacy-related issues.

Zach Lerner

About 

Zach Lerner’s practice focuses on a variety of legal matters impacting Internet-based companies. He helps companies in a wide range of industries, including education technology, financial technology, and fantasy sports/skill and chance gaming, with issues related to privacy, data diligence, e-commerce, copyright enforcement, advertising, and regulatory compliance. In addition, he has a deep knowledge of the practical considerations for implementing blockchain and smart contract technology.