Robert E. Cattanach

Robert E. Cattanach




His technical background enables him to understand the complex business challenges associated with today’s cyber world, and provide the strategic acumen to achieve success.

Bob’s decades of experience as a trial lawyer also enable his clients to achieve their business objectives if other means of resolution cannot be achieved. Bob has an active trial docket in courts around the country, where his innovative thinking, collaborative client approach, and keen strategic insights have provided his clients with a long string of successful verdicts and appeals. Under Bob’s leadership, Dorsey teams have helped our clients achieve precedent-setting results, especially in the complex area of constitutional challenges to government overreach.

Education & Admissions

United States Naval Academy (B.S., Engineering, 1972), with Distinction

University of Wisconsin Law School (J.D., 1975), with Honors


  • Minnesota
  • Wisconsin
  • Minnesota Supreme Court
  • Wisconsin Supreme Court
  • Minnesota Federal District Court
  • Wisconsin Federal District Court
  • U.S. Court of Appeals for the Eighth Circuit
  • U.S. Court of Claims
  • U.S. Supreme Court


Representative Experience

Bob has represented numerous clients in breach responses, development of privacy policies and procedures, and provided counsel to corporate Boards of Directors, and Audit Committees on matters of cybersecurity, privacy and internal governance. Bob’s long history of interaction with key government agencies began with his service of the United States Department of Justice, Civil Division, which represents the interests of the United States and its agencies, including the CIA, FBI, Departments of State, Defense and Energy. His longstanding relationship with those agencies enables him to engage with key players on major cyber issues, and be the “go-to” attorney for all matters cyber.

Bob has significant experience defending consumer class actions, including Telephone Consumer Protection Act (TCPA) suits.

Bob is also a much-sought-after commentator and contributor to professional and journalistic coverage of cybersecurity issues, ranging from the New York Times and USA Today to numerous television media and the Sedona Conference Working Group 11 on cyber matters.

    News & Resources


    U.S. v. Microsoft: Supreme Court to Review Scope of Search Warrant Compliance in a Digital Age
    New FBI Director Must Help Restore Faith in Institutions
    Don’t Get Hooked! W-2 Phishing Scams on the Rise During Tax Season
    BIAS Rules: New FCC Regulations on Broadband Customer Privacy
    US Companies Face Increasing Privacy Challenges in Europe
    US Companies Face Increasing Privacy Challenges in Europe
    Wine and Beer Law, Chapter: Top Ten Pit-Falls in Brewery and Winery Acquisitions
    Joe Hall, Bob Cattanach and Brad Hammer author article on energy and privacy law: "So, who owns your energy-use data?" WindPower Engineering and Development
    Five Steps to Prepare for a Data Breach
    Dorsey Partner Bob Cattanach Comments on Cyber Sharing Bills
    AT&T Settles with FCC for $25 Million in Landmark Privacy and Data Breach Agreement
    Proposed Federal Breach Notification Law: Panacea or Flash in the Pan?

    News & Press Mentions

    Dorsey Partner Bob Cattanach Discusses FBI Hacking
    Dorsey Partner Bob Cattanach Comments on Cellphone Encryption
    "SEC Reveals Top Cyber Enforcement Targets," FundFire
    Dorsey Partner Bob Cattanach Discusses Hotel Data Breach
    Dorsey Partner Bob Cattanach Discusses US v. Microsoft Privacy Case
    "Should CFPB have more power over credit reporting agencies?," American Banker
    Dorsey Partner Bob Cattanach Comments on SEC Hack
    Dorsey Partner Bob Cattanach Comments Government Laptop Searches
    Dorsey Partner Bob Cattanach Discusses Collecting Data from Anti-Trump Site
    51 Dorsey Lawyers in Minneapolis Selected for Inclusion in The Best Lawyers in America 2018 and 2018 Lawyers of the Year
    Dorsey Partner Bob Cattanach Discusses Click Fraud Trial
    Dorsey Partner Bob Cattanach Remarks on Security vs Privacy Debate
    Dorsey Partner Bob Cattanach Remarks on Trump's Impenetrable Cybersecurity
    Super Lawyers Recognizes 36 Dorsey Lawyers in Minneapolis
    Dorsey Partner Bob Cattanach Discusses Law Firm Cyber Attack
    Dorsey Partner Bob Cattanach Comments on Malware Strike in Europe
    Dorsey Partner Bob Cattanach Remarks on Recent NHS Cyber Attack
    Dorsey Partner Bob Cattanach Discusses James Comey's Firing
    Dorsey Partner Bob Cattanach Remarks on New Chinese Cybersecurity Law
    Dorsey Partner Bob Cattanach on Cybersecurity Incident Response & Mitigation
    Dorsey Partner Bob Cattanach Remarks on Fallout from Classified Leaks
    Dorsey Partner Bob Cattanach Discusses Consumer Privacy
    Dorsey Partner Bob Cattanach Discusses the FCC's Privacy Rules Getting Nixed
    Dorsey Partner Bob Cattanach Remarks on Overturning of FCC Privacy Rules
    Dorsey Partner Bob Cattanach Discusses CIA's Device Surveillance Tricks

    Select Presentations

    • “Dorsey & Whitney LLP DorsEdiscovery Forum,” Dorsey & Whitney LLP Seminar, January 28, 2015
    • “Dorsey & Whitney LLP Cybersecurity Seminar,” Dorsey & Whitney LLP Seminar, November 12, 2014
    • “Company Computers Under Attack: Big Dollars and Private Data Are Being Stolen Every Day: What Are You Doing About It?”, Dorsey & Whitney LLP Webinar, June 26, 2014
    • “Privacy & Technology Commerce,” Dorsey & Whitney LLP Breakfast Briefing, March 12, 2014
    • “Once More Into the Breach: Managing Risks When Your Company’s Data Has Been Compromised,” Dorsey & Whitney Corporate Counsel Symposium, 2013
    • Numerous CLE presentations on Regulatory Litigation and Enforcement

    Industries & Practices

    Cybersecurity, Privacy & Social Media
    Government Enforcement & Corporate Investigations
    • Closely Held Businesses
    • Cybersecurity, Privacy & Social Media
    • Electric Power
    • Energy
    • Environmental
    • Food, Beverage & Agribusiness
    • Government Enforcement & Corporate Investigations
    • Health Care
    • Insurance Law
    • Mining & Natural Resources
    • Public-Private Partnerships
    • Telecommunications
    • Telephone Consumer Protection Act

    Professional & Civic

    Professional Achievements

    • The Sedona Conference Working Group on Data Security and Privacy Liability, Working Group 11 (June 2015)
    • The Sedona Conference All Voices Meeting (2014)
    • Chairman of the Board, Ordway Center for the Performing Arts
    • Co-Chair, International Association of Privacy Professionals KnowledgeNet Chapter, Minneapolis-St. Paul
    • Past President, numerous Bar Association Committees and Divisions

    Community Involvement

    • Minnesota State Cycling Champion – Road Race (2009)
    • Minnesota State Cycling Champion – Criterium (2009)


    North Star Lawyer logo

    • Listed in Best Lawyers in America©, 2008-2018
    • Listed as a Minnesota Super Lawyer, 2011-2017
    • MSBA North Star Lawyer, 2016
    Robert E. Cattanach