Russell Cohen is a partner in Orrick's San Francisco office with experience litigating antitrust and other complex business disputes on behalf of companies and individuals, particularly in the technology sector.

Russell has extensive experience with the antitrust laws, especially as they apply to technology companies, implicating issues such as platform economics and strategy, software interoperability and the duty to disclose interface information; IP-related claims, including Walker Process and patent misuse; and non-compete and other employee arrangements. He has represented clients in direct and indirect purchaser antitrust class actions, unfair competition cases and competitor suits in state and federal court, as well as in arbitration and international forums. 

Russell is also a member of Orrick's Cyber, Privacy & Data Innovation practice, working with clients on incident planning and data-breach response efforts, including utilizing cyber insurance as part of a coordinated, comprehensive strategy for managing and recovering from data breaches. Exclusively on behalf of policyholders, he has pursued claims and litigated complex insurance disputes to recover for cyber attacks, employee sabotage, phishing schemes and other losses.  He speaks and publishes frequently in the United States and Canada on cybersecurity litigation and cyber insurance. 

Russell has also represented clients in other complex business disputes, including venture capital investor disputes, insurance recovery for financial, property and other losses and other commercial matters in federal and state court, and in arbitration proceedings.

Russell is committed to pro bono legal work and community service. He was counsel in the successful Alien Tort Statute case against one of the assassins of Archbishop Oscar Romero, who was murdered in El Salvador in 1980. He represented former Guantanamo detainees seeking damages for torture and unlawful detention and was amicus counsel for a group of Canadian and international human rights organizations and scholars in the U.S. Supreme Court in Arar v. Ashcroft

  • The following is a sample of his notable clients and cases.


    • Microsoft. Since 2000, representing Microsoft in numerous antitrust matters, including indirect purchaser class actions in California, Minnesota, Iowa and other states, coordinated multidistrict litigation, competitor actions in federal and state courts, competition litigation in Canada, and in connection with patent misuse claims in the ITC.  Russell also prepared an amicus brief in the US Supreme Court on behalf of Microsoft, Coca-Cola and others in Texaco v. Dagher concerning antitrust liability of joint ventures.
    • Dyson. Obtained dismissal of Walker process and Handgards antitrust claims in Cornucopia Products LLC v. Dyson Incorporated.
    • Canadian Antitrust Proceedings. Represented CP Ships and Superior Propane in contested merger proceedings in Canada.

    Cyber and Insurance

    • Medidata. Representing Medidata in 2d Circuit appeal of district court decision finding insurance coverage for computer fraud.
    • Sony. Represented Sony in pursuing property and liability insurance claims arising out of cyber attacks on its online gaming, video and music networks.
    • Hewlett-Packard. Represented HP in litigation seeking insurance coverage for data loss due to employee sabotage.