LOS ANGELES - July 16Arent Fox announced today that Michael Zweiback, a former federal prosecutor who was chief of the Los Angeles US Attorney’s Cyber & Intellectual Property Crimes Section and deputy chief of the Los Angeles US Attorney's office Organized Crime and Terrorism Section, has joined the firm in Los Angeles as a partner in the litigation practice.  As a private practice attorney, he has represented individuals and companies in investigations involving health care fraud and securities, antitrust, public corruption and Foreign Corrupt Practices Act violations.  Mr. Zweiback has also litigated successfully a broad range of intellectual property cases and is recognized for his deep knowledge of privacy and data security issues.  
“With the government’s growing enforcement of laws governing fraud and corruption at home and abroad, Michael’s exceptional background and experience make him an invaluable resource for clients and a welcome addition to our firm,” said Robert C. O’Brien, managing partner of Arent Fox, Los Angeles. “He joins an extraordinary bi-coastal team of white collar and government investigations litigators headed by Terree Bowers, former US Attorney for the Central District of California.”
Mr. Zweiback honed his skills as an Assistant US Attorney where he investigated and prosecuted white collar and health care fraud and corruption matters as well as complex business crimes.  During his tenure he served as chief of the Cyber & Intellectual Property Crimes Section, where he conducted investigations and prosecuted individuals who hacked into corporate and government computer networks, and committed e-commerce fraud and intellectual property crimes including theft of corporate trade secrets, criminal copyright and trademarks, and violations of the Digital Millennium Copyright Act.  

Additionally, he supervised more than 15 prosecutors and staff as deputy chief of the Los Angeles US Attorney's office Organized Crime and Terrorism Section, and he successfully prosecuted over 20 complex federal jury trials.  Mr. Zweiback’s service as Assistant US Attorney was recognized by the Department of Justice, which twice honored him with a Special Achievement Award.  He also twice received the Director’s Award for Superior Performance as an Assistant US Attorney.
After his service as a federal prosecutor, Mr. Zweiback entered private practice where he represented clients in investigations before the Securities and Exchange Commission, the Justice Department, the US Attorney’s office, the FBI, the Environmental Protection Agency, the Internal Revenue Service, and others.  He frequently counsels major corporations and online companies on cutting–edge data security issues.
“Michael’s track record, talent and broad-based experience will bring increased depth to our national white collar and investigations practice,” said practice leader Terree Bowers.  “Michael strengthens an already formidable team, which includes former federal judge Stephen G. Larson, former US Ambassador Pierre-Richard Prosper, and former Assistant US Attorney Mary Carter in Los Angeles; Mark Radke and Peter Unger in Washington D.C., who previously served as chief of staff to the chairman of the SEC and an attorney in the SEC’s Division of Enforcement respectively; Steven Kimelman who previously served as Assistant US Attorney deputy chief of the criminal division and chief of the frauds section and Michael Bellinger a former Assistant District Attorney in New York.”
Mr. Zweiback graduated from Loyola Law School and has a bachelor’s degree from University of California at Los Angeles. He resides in Pasadena.

About Arent Fox

Arent Fox LLP, with offices in Los Angeles, Washington, DC, and New York, is a recognized leader in areas including election law, complex litigation, intellectual property, real estate, telecommunications, health care, automotive, sports, white collar, international trade, and bankruptcy. With more than 350 lawyers nationwide, Arent Fox has extensive experience in corporate securities, financial restructuring, government relations, labor and employment, finance, tax, and corporate compliance.