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Sidley Austin LLP

Privacy & Data Security: The Elite

Global Guide 2026 : USA

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Sidley Austin LLP

Rankings

About

Provided by Sidley Austin LLP

For more information on the practice, please visit the practice's page at: https://www.sidley.com/en/services/privacy-and-cybersecurity

Chambers Review

Provided by Chambers

Privacy & Data Security: The Elite - USA

Band 2

What the Team is Known For
Sidley Austin has an excellent practice that is recognized for its litigation strengths and compliance expertise, maintaining a respected incident response and data breach team. Offers advice to clients on a wide array of issues, including big data, cybersecurity and cross-border information flow matters. Broad-ranging sector expertise includes consumer products manufacturing, financial services, retail, technology and transportation. Works with the firm's well-regarded corporate practice, conducting privacy and cybersecurity diligence for M&A.
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Work Highlights

Provided by Chambers

  • Sidley Austin LLP represented AT&T globally on range of regulatory investigation and litigation matters regarding privacy, security, technology and law enforcement.

Strengths

Provided by Chambers

  • Sidley Austin is extremely strategic and sees the big picture. One of the best customer service teams I've worked with over the past 40-plus years.

    Privacy & Data Security: The Elite respondentGlobal

  • Sidley is very capable, has a deep bench of great attorneys and has a wide variety of expertise across all practice areas in this space.

    Privacy & Data Security: The Elite respondentGlobal

  • They can navigate complex business risk in international jurisdictions and help their clients resilience and survivability. There does not seem to be a topic they cannot offer depth and precision on.

    Privacy & Data Security: The Elite respondentGlobal

  • Truly the thought leaders in all things cyber security, privacy, and national security related issues. All partners and associates have unparalleled expertise.

    Privacy & Data Security: The Elite respondentGlobal

  • Sidley provide absolute excellence in technical expertise, mastery of legal and regulatory issues, strong relationships with US and foreign government officials.

    Privacy & Data Security: The Elite respondentGlobal

Notable Practitioners

Provided by Chambers

  • David Lashway
    David Lashway

    David Lashway

    David Lashway is a highly regarded representative for clients in cybersecurity regulatory investigations and frequently advises on data breach response. He also has cross-border capabilities.

    • David is excellent. He is great at dealing with a very complicated investigation and he just knows how to run the matter.

      Privacy & Data Security: The Elite respondentGlobal

    • David is an exceptional talent.

      Privacy & Data Security: The Elite respondentGlobal

    • David is a superb attorney.

      Privacy & Data Security: The Elite respondentGlobal

    • David is an outstanding lawyer, counselor, advocate, and diplomat. His technical legal expertise is unmatched. His understanding of the legal, commercial, and geopolitical sets him apart.

      Privacy & Data Security: The Elite respondentGlobal
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  • Colleen Theresa Brown
    Colleen Theresa Brown

    Colleen Theresa Brown

    Colleen Theresa Brown has a strong privacy practice managing data breach issues and litigation. She also has experience of working on privacy matters following acquisitions.

    • Colleen bridges the gap between legal and IT.

      Privacy & Data Security: The Elite respondentGlobal

    • Colleen is very knowledgeable about data privacy regulation and risk management.

      Privacy & Data Security: The Elite respondentGlobal

    • Colleen has a great breadth of knowledge in the US privacy space. She always provides an in-depth summary of the legal landscape.

      Privacy & Data Security: The Elite respondentGlobal

    • Colleen is very good and really great on the privacy side.

      Privacy & Data Security: The Elite respondentGlobal

    • Colleen is superb counsel.

      Privacy & Data Security: The Elite respondentGlobal
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  • John W Woods
    John W Woods

    John W Woods

    John Woods is held in high regard for his ability to assist clients on high-profile cyber incidents. He is notably adept at advising clients on matters related to ransomware.

    • John is one of the most brilliant lawyers I've worked with.

      Privacy & Data Security: The Elite respondentGlobal

    • John is an exceptional talent.

      Privacy & Data Security: The Elite respondentGlobal
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Ranked Individuals at Sidley Austin LLP (4)

USA

Members

Provided by Sidley Austin LLP

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