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Marc Zwillinger is the founder and managing member of ZwillGen PLLC where he counsels clients on issues related to the laws governing Internet practices, including issues related to ECPA and FISA, data privacy, information security, third-party data demands, content moderation, collection and use of alternative data, deployment of AI, and fantasy sports and Internet gambling. Marc works on issues arising under state and federal data privacy, security breach, and surveillance statutes, such as ECPA, VPPA, CFAA, BIPA, and CCPA. He works with clients who have suffered security breaches in managing the incident response, conducting internal investigations, complying with security breach notification laws, and responding to FTC and state Attorney General inquiries. Marc also helps Internet platforms work on content moderation and deplatforming issues, including the development of Ethical Use Frameworks.

Marc has represented clients in more than a dozen FTC and state AG investigations involving data security, data privacy, and advertising practices, many of which have been closed with no action taken against clients. He has also negotiated settlement agreements, consent decrees, and assurances of discontinuance with the FTC and with Attorneys General office’s in New York, Massachusetts, and Maryland.


+1-202-296-3585

Marc Zwillinger

Founder & Managing Member
Zwillgen
Washington, DC

Practice Area: Privacy & Data Security

All-Star

WHAT CLIENTS SAY

"Marc is always highly responsive and speaks to us as a peer in the industry."


MY CLIENT PHILOSOPHY

"My approach to client service is simple: Be right. Be timely. Be practical. I give clear, accurate advice when it’s needed—in a form clients can act on. I meet clients where they are, whether they need big-picture thinking or a quick gut check. And I keep perspective: Not every issue is a crisis, but when it is, I won’t downplay it either. I try not to make mountains out of molehills, or molehills out of mountains. I just help clients make smart, defensible decisions."

– Marc Zwillinger

ALL-STAR BIOGRAPHY

Marc Zwillinger is the founder and managing member of ZwillGen PLLC where he counsels clients on issues related to the laws governing Internet practices, including issues related to ECPA and FISA, data privacy, information security, third-party data demands, content moderation, collection and use of alternative data, deployment of AI, and fantasy sports and Internet gambling. Marc works on issues arising under state and federal data privacy, security breach, and surveillance statutes, such as ECPA, VPPA, CFAA, BIPA, and CCPA. He works with clients who have suffered security breaches in managing the incident response, conducting internal investigations, complying with security breach notification laws, and responding to FTC and state Attorney General inquiries. Marc also helps Internet platforms work on content moderation and deplatforming issues, including the development of Ethical Use Frameworks.

Marc has represented clients in more than a dozen FTC and state AG investigations involving data security, data privacy, and advertising practices, many of which have been closed with no action taken against clients. He has also negotiated settlement agreements, consent decrees, and assurances of discontinuance with the FTC and with Attorneys General office’s in New York, Massachusetts, and Maryland.

Visit All-Star's Firm »


+1-202-296-3585

Marc Zwillinger

Founder & Managing Member
Zwillgen
Washington, DC

Practice Area: Privacy & Data Security

M&A All-Star

ALL-STAR BIOGRAPHY

Marc Zwillinger is the founder and managing member of ZwillGen PLLC where he counsels clients on issues related to the laws governing Internet practices, including issues related to ECPA and FISA, data privacy, information security, third-party data demands, content moderation, collection and use of alternative data, deployment of AI, and fantasy sports and Internet gambling. Marc works on issues arising under state and federal data privacy, security breach, and surveillance statutes, such as ECPA, VPPA, CFAA, BIPA, and CCPA. He works with clients who have suffered security breaches in managing the incident response, conducting internal investigations, complying with security breach notification laws, and responding to FTC and state Attorney General inquiries. Marc also helps Internet platforms work on content moderation and deplatforming issues, including the development of Ethical Use Frameworks.

Marc has represented clients in more than a dozen FTC and state AG investigations involving data security, data privacy, and advertising practices, many of which have been closed with no action taken against clients. He has also negotiated settlement agreements, consent decrees, and assurances of discontinuance with the FTC and with Attorneys General office’s in New York, Massachusetts, and Maryland.

Visit All-Star's Firm »