Colson Hicks Eidson Files Class Action Lawsuit Against Capital One For Negligence In Massive Data Breach

August 16, 2019 / 8:50 am

Lawsuit alleges breach was caused by Capital One’s inadequate approach to data security; urges those affected to join the investigation

MIAMI (Aug. 16, 2019) – The Miami-based law firm of Colson Hicks Eidson has filed a class action lawsuit against Capital One Financial Corporation for negligence in failing to safeguard consumers’ personal information in relation to the bank’s recent massive data breach, which exposed the information of approximately 100 million consumers.

The lawsuit, filed in Federal Court in the Eastern District of Virginia on behalf of plaintiffs Maria de Lourdes Tester (Miami) and Tracy Elizabeth Masi (Virginia Beach), alleges that Capital One failed to exercise reasonable care in securing consumers’ personal information, failed to prevent the data breach and failed to detect the breach for approximately three months.

According to the FBI, due to Capital One’s faulty firewalls, hacker Paige Thompson was able to access the bank’s cloud repository on or around March 2019, gathering the personal information of approximately 100 million consumers. Thompson in-turn posted the information on her GitHub account on April 21, 2019, making the information available to the public for further exploit.

According to the complaint, Capital One did not make the data breach known to the public until July 29, 2019, and the information remained exposed until at least July 17, 2019 when Capital One received a tip from an unidentified tipster.

The complaint asserts that the data breach was caused by Capital One’s inadequate approach to data security and protection of personal information, noting the deficiencies in Capital One’s data security and firewall were so significant that the firewall permitted access to any consumer or small business that applied for one of Capital One’s credit card products through early 2019 – approximately 14 years of data left unprotected and exposed for any malicious actor to access, download and exploit.

“Capital One was reckless and completely disregarded the rights of consumers by failing to implement and maintain adequate data security measures and therefore exposed information to criminals for misuse,” said Lewis S. Mike Eidson, co-counsel for the plaintiffs. “Through this lawsuit, we hope to prevent a reoccurrence of a similar data breach, which has caused tremendous grief and compromised the financial standing and credit scores for so many.”

According to the complaint, as a result of the bank’s massive data breach, the plaintiffs suffered theft of personal information, costs associated with the detection and prevention of identity theft and unauthorized use of financial accounts, inability to use debit or credit card accounts because accounts were suspended or rendered unusable as a result of fraudulent charges; inability to withdraw or access funds, including missed bill and loan payments, incurred late payment charges and lowered credit scores, among other costs associated with spending time to address and mitigate the consequences of the data breach.

Colson Hicks Eidson filed the class action lawsuit along with co-counsel Virginia Beach-based Breit Cantor Grana Buckner, PLLC.  The case is Maria de Lourdes Tester and Tracy Elizabeth Masi v. Capital One Financial Corporation, No. 3:19-cv-579, filed in the U.S. District Court for the Eastern District of Virginia.

For more information on this lawsuit, contact Mike Eidson at 305-476-7400.

ABOUT COLSON HICKS EIDSON

The Law Firm of Colson Hicks Eidson is a trial firm with more than 50 years of experience handling local, national and international litigation, and arbitration. Members of the firm have been involved in some of the country’s most high-profile and landmark cases resulting in impactful and precedential rulings. A mid-size firm with a diverse staff comprised of more than 50 percent women and minorities, Colson Hicks Eidson prides itself on a track record of developing future leaders within the legal profession and its civic and community involvement. Members of the firm have held notable positions serving on the boards of prominent institutions, such as the State University System of Florida and the Florida State Board of Education, and holding high-ranking offices, including President of the 60,000-member American Association for Justice; President of the International Academy of Trial Lawyers; President of the Dade County Bar Association; President of the Miami-Dade Florida Association of Women Lawyers; United States Attorney for the Southern District of Florida; and Chairman of the Florida Federal Judicial Nominating Commission.

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Colson Hicks Eidson is pleased to announce that Zachary Lipshultz has become a partner with the firm.

Dean Colson, managing partner of the firm, commented: “Zach is a valued member of the firm and a respected figure in the South Florida legal community. His practice focuses on complex commercial litigation and products liability matters, representing both plaintiffs and defendants in high-stakes disputes across a wide range of industries. He is known for his strategic judgment, rigorous advocacy, and ability to manage cases involving significant financial exposure and novel legal issues.”

During his six years at Colson Hicks Eidson, Zach has worked with Bob Martinez, Curtis Miner, and other firm partners to secure four nine-figure judgments against Fortune 500 companies, obtain dismissals with prejudice on behalf of multiple Fortune 500 defendants, and successfully represent clients before arbitral, state, and federal forums, at trial and on appeal.

According to Senior Partner Bob Martinez: “Zach has been the indispensable force behind our victories in several high-stakes matters over the past seven years, combining unique legal talent with exceptional dedication and service to our clients.”

“Having spent multiple weeks shoulder-to-shoulder with Zach in trial, I am eager to have him as a teammate on any type of trial we need to suit up for,” added partner Curtis Miner.

Zach joined the firm following a federal judicial clerkship with the Honorable Robert N. Scola, Jr., former United States District Judge for the Southern District of Florida. Zach is a 2016 graduate of the University of Miami School of Law. He completed his undergraduate studies at Oberlin College in 2011 and earned a master’s degree in marine affairs and policy from the University of Miami Rosenstiel School of Marine and Atmospheric Science in 2012.

About Colson Hicks Eidson

Colson Hicks Eidson is a renowned law firm based in Miami, Florida, that is recognized as one of the top trial firms in the United States. Built on a foundation of over 50 years of dedication forging strong client relationships, Colson Hicks Eidson handles local, national, and international litigation, with cases spanning from Miami, Florida, and throughout the United States, to matters in the Caribbean, Central America, South America, and Europe. Learn more at: www.colson.com.

Colson Hicks Eidson, a leading trial law firm, is proud to announce its relocation to the Penthouse of the South Tower at Douglas Entrance in Coral Gables. This move marks an important milestone for the firm, which has represented clients in local, national, and international matters for more than 55 years. The new office is located within Douglas Entrance, home to the historic gateway La Puerta del Sol (“The Gate of the Sun”), and is surrounded by Mediterranean-style architecture, lush landscaping, and expansive courtyards. With its picturesque, Spanish-walled-city appearance, Douglas Entrance provides a distinctive office environment in Coral Gables, and the firm’s name will soon adorn the top of the South Tower.

The space holds personal significance for Managing Partner Dean Colson, who explains: “For those of us who grew up in the Gables in the ‘50s and ‘60s, the original Douglas Entrance was very much a part of our lives – it was the working home for many of the doctors, lawyers, architects, and other professionals who lived south of downtown Miami. Our move reflects not only our firm’s growth, but our ongoing dedication to our clients and the Coral Gables community. It is reminiscent of our decision 25 years ago to restore the building that is now Books & Books and secure its historic designation—a choice that helped preserve the character of Coral Gables. The firm remains committed to doing the right thing for our community.”

Colson Hicks Eidson moved into its new space in December 2025 with the assistance of Will Morrison of CBRE. According to Dean, “Will’s expertise, vision, and patience made this deal possible. G. Alvarez Studio ensured that the design of our floor was executed perfectly.”

About Colson Hicks Eidson

Colson Hicks Eidson is a renowned law firm based in Miami, Florida, that is recognized as one of the top trial firms in the United States. Built on a foundation of over 55 years of dedication forging strong client relationships, Colson Hicks Eidson handles local, national, and international litigation, with cases spanning from Miami, Florida, and throughout the United States, to matters in the Caribbean, Central America, South America, and Europe. Learn more at: www.colson.com.

We are pleased to announce that three of our partners have been named to the 2026 Lawdragon 500 Leading Lawyers in America guide. Congratulations to Curtis Miner, Julie Braman Kane, and Joseph J. Kalbac Jr.

They were recognized for excellence in Litigation and White Collar (Curtis Miner), Plaintiff Class Action Litigation (Julie Braman Kane), and Plaintiff Personal Injury (Joseph J. Kalbac, Jr.).

Lawdragon recognizes this exceptional group for leading the way for clients, communities, and their firms, while shaping the law for decades to come.

This guide is based on a record number of submissions, combined with journalistic research and vetting with the nation’s leading lawyers.

Click here to read the full guide.

About Colson Hicks Eidson

Colson Hicks Eidson is a renowned law firm based in Miami, Florida, that is recognized as one of the top trial firms in the United States. Built on a foundation of over 50 years of dedication forging strong client relationships, Colson Hicks Eidson handles local, national, and international litigation, with cases spanning from Miami, Florida, and throughout the United States, to matters in the Caribbean, Central America, South America, and Europe. Learn more at: www.colson.com.

Colson Hicks Eidson is proud to share that Managing Partner Dean C. Colson has been recognized in Florida Trend’s 2025 edition of the Florida 500, which features the 500 most influential executives across various economic sectors in the state.

Dean was honored for his major client wins over a 40-year career and his lasting contributions to Florida higher education, with the firm describing him as “the only person to have chaired the State University System in Florida, the Board of Trustees of Florida International University, and the Board of Trustees of the University of Miami.”

He served 18 years as a UM trustee, chairing a $1.4-billion capital campaign, and was appointed by Gov. Jeb Bush to the state’s ethics commission and Supreme Court Judicial Nominating Commission. Dean also chaired committees that secured the 1999 and 2007 South Florida Super Bowls, clerked for U.S. Supreme Court Justice William H. Rehnquist and Fifth Circuit Judge Peter T. Fay, and remains a trustee for FIU and Miami’s Institute of Contemporary Art.

A renowned U.S. trial lawyer, Dean handles complex civil litigation, personal injury, product liability, and professional malpractice matters. He has successfully represented large plaintiff classes and handled multimillion-dollar cases, including high-profile litigation such as the AeroPeru airplane crash and a Ponzi scheme settlement.

Click here to read the full edition.

About Colson Hicks Eidson

Colson Hicks Eidson is a renowned law firm based in Miami, Florida, that is recognized as one of the top trial firms in the United States. Built on a foundation of over 50 years of dedication forging strong client relationships, Colson Hicks Eidson handles local, national, and international litigation, with cases spanning from Miami, Florida, and throughout the United States, to matters in the Caribbean, Central America, South America, and Europe. Learn more at: www.colson.com.

Colson Hicks Eidson has been named to the 2026 edition of the “Best Law Firms” by Best Lawyers®, recognized at both the national and metropolitan levels. Ten of the firm’s attorneys were also named to the 2026 edition of Best Lawyers® across multiple practice areas.

Best Lawyers® ranks top lawyers and law firms through a peer review process, using feedback from lawyers, clients, and professional references, along with firm data. We’re proud to be recognized in the following categories:

National

  • Mass Tort Litigation/Class Actions – Plaintiffs

Miami

  • Bet-the-Company
  • Litigation
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  • Insurance Law
  • Mass Tort Litigation/Class Actions – Plaintiffs
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About Colson Hicks Eidson

Colson Hicks Eidson is a renowned law firm based in Miami, Florida, that is recognized as one of the top trial firms in the United States. Built on a foundation of over 50 years of dedication forging strong client relationships, Colson Hicks Eidson handles local, national, and international litigation, with cases spanning from Miami, Florida, and throughout the United States, to matters in the Caribbean, Central America, South America, and Europe. Learn more at: www.colson.com.

Colson Hicks Eidson is proud to announce that partner Roberto Martinez has been selected to receive the 2025 Miami-Dade Bar Circle of Excellence Award for Civil Litigation, which honors attorneys and paralegals who demonstrate exceptional performance within Florida’s legal profession.

Bob, a renowned trial lawyer with a distinguished record in high-profile cases and public service— including his tenure as U.S. Attorney for the Southern District of Florida—has made significant contributions to advancing the legal profession and facilitating the administration of justice. His leadership and mentorship have had a lasting impact on the broader legal community.

The award will be presented at the Miami-Dade Bar’s Annual Award Ceremony in Coconut Grove on November 19. Colson Hicks Eidson is a proud sponsor of the event.

About Colson Hicks Eidson

Colson Hicks Eidson is a renowned law firm based in Miami, Florida, that is recognized as one of the top trial firms in the United States. Built on a foundation of over 50 years of dedication forging strong client relationships, Colson Hicks Eidson handles local, national, and international litigation, with cases spanning from Miami, Florida, and throughout the United States, to matters in the Caribbean, Central America, South America, and Europe. Learn more at: www.colson.com.