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Data breach response attorneys and cybersecurity law firms providing incident response counsel, breach notification compliance, regulatory defense, and litigation support following corporate security incidents. These firms handle SEC cyber disclosure requirements, state breach notification laws, HIPAA breach response, class action defense, and forensic investigation coordination.
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Cleveland, United StatesBakerHostetler is a U.S. law firm founded in Cleveland in 1916 and now distinguished by the scale of its digital-assets, privacy and data-security work alongside traditional corporate and litigation practices. Its modern identity pairs century-old institutional roots with legal issues created by rapidly changing technology.
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Atlanta, United StatesHealth 51/100Alston & Bird is an AmLaw 100 law firm with a nationally recognised cybersecurity and privacy practice consistently ranked in Chambers USA Band 1. Founded in 1893 and headquartered in Atlanta, Georgia, the firm operates from 12 offices with over 800 attorneys. The cybersecurity practice handles data breach preparedness and response, SEC cyber disclosure, state attorney general investigations, CFPB actions, and regulatory compliance under GDPR, CCPA, HIPAA, GLBA, and FTC Act Section 5. Alston & Bird publishes one of the most widely referenced state data breach notification law resources, tracking all 50 state breach notification statutes.
Wayne, United StatesHealth 51/100Mullen Coughlin is a law firm exclusively focused on data privacy and cybersecurity incident response, handling over 4,000 data breach matters annually. Founded by Jennifer Coughlin and John Mullen in Wayne, Pennsylvania, the firm serves as breach coach for major cyber insurance carriers and has guided incident response for breaches affecting tens of millions of individuals. Mullen Coughlin manages the full lifecycle of a data security incident from initial forensic investigation through notification, regulatory response, and litigation defense. The firm's specialty model means every attorney works exclusively on cyber and privacy matters. Mullen Coughlin has been named to the National Law Journal's Cyber Law Trailblazers list.
Los Angeles, United StatesHealth 51/100Lewis Brisbois Bisgaard & Smith is an AmLaw 100 firm with one of the largest data privacy and cybersecurity practices in the United States. Founded in 1979 and headquartered in Los Angeles, the firm operates 60+ offices nationwide with over 1,600 attorneys. The Data Privacy & Cybersecurity practice handles incident response, regulatory investigations, class action defense, biometric privacy litigation, wiretapping claims, TCPA defense, and SEC cybersecurity disclosure compliance. Lewis Brisbois' privacy group has handled thousands of breach response engagements and is retained by multiple major cyber insurance carriers as panel counsel.
Dallas, United StatesHealth 51/100Clark Hill is a law firm with a dedicated Cybersecurity, Data Privacy & Technology practice that provides incident response, breach notification, regulatory compliance, and proactive cybersecurity counseling for mid-market and enterprise companies. Founded in 1890 and headquartered in Dallas, Texas, the firm operates from 28 offices with over 700 attorneys. Clark Hill's cybersecurity team handles NIST Cybersecurity Framework implementation, incident response planning, ransomware negotiation, cyber insurance claims, state and federal regulatory investigations, and CMMC compliance for defence contractors.
Cleveland · United States
BakerHostetler is a U.S. law firm founded in Cleveland in 1916 and now distinguished by the scale of its digital-assets, privacy and data-security work alongside traditional corporate and litigation practices. Its modern identity pairs century-old institutional roots with legal issues created by rapidly changing…
Los Angeles · United States
Lewis Brisbois Bisgaard & Smith is an AmLaw 100 firm with one of the largest data privacy and cybersecurity practices in the United States. Founded in 1979 and headquartered in Los Angeles, the firm operates 60+ offices nationwide with over 1,600 attorneys. The Data Privacy & Cybersecurity practice handles incident…
Atlanta · United States
Alston & Bird is an AmLaw 100 law firm with a nationally recognised cybersecurity and privacy practice consistently ranked in Chambers USA Band 1. Founded in 1893 and headquartered in Atlanta, Georgia, the firm operates from 12 offices with over 800 attorneys. The cybersecurity practice handles data breach…
Dallas · United States
Clark Hill is a law firm with a dedicated Cybersecurity, Data Privacy & Technology practice that provides incident response, breach notification, regulatory compliance, and proactive cybersecurity counseling for mid-market and enterprise companies. Founded in 1890 and headquartered in Dallas, Texas, the firm operates…
Wayne · United States
Mullen Coughlin is a law firm exclusively focused on data privacy and cybersecurity incident response, handling over 4,000 data breach matters annually. Founded by Jennifer Coughlin and John Mullen in Wayne, Pennsylvania, the firm serves as breach coach for major cyber insurance carriers and has guided incident…
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