London Daily

Focus on the big picture.
Wednesday, Feb 18, 2026

A data breach is exposing Big Law firms who were using a 20-year-old system for handling sensitive documents. Here's what we know so far.

A data breach is exposing Big Law firms who were using a 20-year-old system for handling sensitive documents. Here's what we know so far.

Accellion, a top legal data vendor, was hit by a data breach. Here are firms that could be at risk in the legal industry's latest data security risk.
Leading law firm data vendor Accellion fell victim to a data breach now tied to hacks at least two big customers, the latest in a string of data-security failures that has affected the legal industry in recent years.

Accellion said this month that its aging File Transfer Appliance (FTA) product was compromised. For years, Accellion, which provides file transfer services, has been a top choice among Big Law to share sensitive files that are too big to be emailed, and is used by 35% of the largest law firms.

Accellion FTA is meant to help large companies like law firms securely transfer large and sensitive files through a private cloud system. The 20-year-old platform is being phased out, Accellion said this month, and will not allow renewals after April 30.

The Wall Street Journal on Tuesday reported that Jones Day, which has represented major corporate clients like Alphabet and Goldman Sachs, along with Donald Trump's presidential campaign, was among the firms impacted. The anonymous hacker who posted documents purported to be from Jones Day on the dark web told the Journal that it had accessed Jones Day servers and didn't obtain the information through Accellion, something Jones Day disputed.

"Jones Day's network has not been breached," the firm said in a statement, adding that the incident was still under investigation. "Jones Day has been informed that Accellion's FTA file transfer platform, which is a platform that Jones Day — like many law firms, companies and organization — used was recently compromised and information taken."

Goodwin Procter, another large firm that has used Accellion, experienced a data breach on Jan. 20, Bloomberg Law first reported. When reached by Insider on Wednesday, the firm declined to comment.

In addition to using Accellion, Goodwin Procter also represented an investor in the company in a $120 million financing round last year.

Many law firms have been mentioned in the Accellion's marketing material over the years, but several — including Cozen O'Connor, Seyfarth Shaw, Arent Fox, and Barnes & Thornburg — weren't impacted by the breach, according to statements by the firms or people familiar with the matter.

Rob Dougherty, an Accellion spokesman, told Insider that "the vast majority" of its law-firm clients no longer use FTA and have upgraded to its newer Kiteworks product, but didn't respond to a request for specific numbers.

Kiteworks was launched in 2014. FTA, meanwhile, is nearing the end of its product life, Accellion said in its Feb. 1 statement disclosing what it called a "sophisticated cyberattack."

Accellion has also touted Fragomen Del Rey Bernsen & Lowey; Cahill Gordon & Reindell; Willkie Farr & Gallagher; Squire Patton Boggs; Ropes & Gray; Dentons; Latham & Watkins; Foley & Lardner; and Cadwalader Wickersham & Taft as clients.

Representatives for Cahill, Squire, Ropes, Latham and Cadwalader said they weren't impacted by the breach. A Dentons representative said the firm does not use the DTA system. People at the other firms didn't respond to comment requests.

Law firms and the companies that manage their data have been targeted in privacy attacks in recent years: DLA Piper was hit in a major cybersecurity attack in 2017, in which hackers demanded a mere $300 in bitcoin for the firm to regain access to its computer systems. A 2019 Law.com report estimated that more than 100 Big Law firms have reported data breaches.

Frank Gillman, a law firm information technology consultant with Vertex Advisors, told Insider that he couldn't speak about Accellion specifically, but said software vendors are generally not looking to break the bank when they ask a firm to upgrade.

"Typically, software companies looking to get clients from an older iteration to a newer product line keep the overall price increase to a 10% to 15% range increase, with large incentives for longer subscription periods," he said in an email. "Otherwise, it's difficult to meet budgetary restrictions of the customer."

The responses from law firms and their third-party data storage partners to data breaches have varied. In some cases, hackers have threatened to erase or release files unless they are paid. In a late 2020 breach notification, Cadwalader reportedly told a regulator that one of its vendors was impacted by a ransomware attack and paid to have its systems unencrypted.

The Wall Street Journal reported that the hacker who claimed to have breached Jones Day said the firm hadn't responded to its outreach.
Newsletter

Related Articles

0:00
0:00
Close
Italian Police Arrest Man After Alleged Attempt to Abduct Toddler at Bergamo Supermarket, Child Hospitalised With Fractured Femur
Rupert Lowe wanted to deport rape gangs and the communities who protected them
Reform UK Appoints Former Conservative Minister Robert Jenrick as Finance Chief
UK Unemployment Rises to Highest in Nearly Five Years as Labour Market Weakens
Rupert Lowe Advocates for English-Only Use in the UK
US Successfully Transports Small Nuclear Reactor from California to Utah
South Korea's traditional sand wrestling sport ssireum faces declining interest at home
Japan outlawed Islam
Virginia Giuffre accuses Epstein of trafficking to powerful men for blackmail.
New Mexico lawmakers initiate investigation into Zorro Ranch linked to Jeffrey Epstein
British Tourist Arrested at Hong Kong Airport After Meltdown and Vandalism
The Spanish government has ordered prosecutors to investigate platforms X, Meta and TikTok for allegedly spreading AI-generated child sexual abuse material
European Commission Plans Purchase Incentives Limited to Vehicles Manufactured Largely in the EU
French District of Pas-de-Calais Introduces Immediate License Suspension for Drivers Using Mobile Phones
Volkswagen Targets €60 Billion in Cost Reductions as Sales Decline and Global Pressures Intensify
Nigel Farage Names Reform UK Frontbench Team and Signals Zero Tolerance for Internal Dissent
Qualcomm to Withdraw UK Lawsuit Over Smartphone Chip Royalty Dispute
Major UK Banks Explore Domestic Card Network to Rival Visa and Mastercard
Cold Health Alert Issued Across UK as Temperatures Drop Sharply
Nine-Year-Old Becomes First Child in UK to Undergo Groundbreaking Leg-Lengthening Surgery
UK Workers Face Stagnant Incomes and a Softening Labour Market as Unemployment Climbs
UK Passport Rules Tightened for British Dual Nationals Under New Travel Guidance
California Deepens Global Climate Alliance with New UK Pact and Major Clean-Tech Investment Drive
UK Supreme Court Tightens Rules on Use of ‘Milk’ and ‘Cheese’ Labels for Plant-Based Products
University of Kentucky Postpones Feb. 19 Law Enforcement Training Exercise in Lexington
‘The only thing illegal is Keir Starmer handing these islands to a country like Mauritius!’
JD Vance says Germany is “killing itself” by taking in millions of fake asylum seekers from culturally incompatible nations.
UK Markets Signal Opportunity as Starmer Confronts Intensifying Political Pressure
Trump Criticises Newsom’s UK Climate Pact, Defends Federal Authority Over Foreign Engagements
UK’s Top Prosecutor Says ‘No One Is Above the Law’ as Police Review Claims Against Ex-Prince Andrew
Businessman Adam Brooks weighs in on the reports that the US is set to help Hamit Coskun flee the UK, over free speech concerns
U.S. Attorney General Pam Bondi Releases 3.5 Million Pages of Jeffrey Epstein Case Files
US Secretary of State Marco Rubio Comment on European allies report blaming Russia for killing late Kremlin critic Alexei Navalny using toxin from poison dart frogs
Eighty-Year-Old Lottery Winner Sentenced to 16.5 Years for Drug Trafficking
UK Quran Burner May Receive Asylum in the US Amid Legal Challenges
Rubio Calls for Sweeping U.N. Reform, Saying It Has Failed to End Wars in Gaza and Ukraine
10,000 Condoms Distributed at Winter Olympics 2026 Athlete Village Depleted Within 72 Hours
Poland's President Advocates for Evaluating Independent Nuclear Weapons Development
Prince William Meets Saudi Crown Prince as Epstein-Andrew Fallout Casts Shadow
Starmer Calls for Renewed ‘Hard Power’ Investment at European Security Summit
UK Police Establish National Taskforce to Handle Domestic Epstein-Linked Allegations
UK Court Rules Ban on Palestine Action Unlawful in Major Free Speech Test
UK Faces Prospect of Net Migration Turning Negative as Economic Impact Looms
Mayor of Serdobsk in Russia’s Penza Region Resigns After Housing Certificates Granted to Migrant Family Trigger Public Outcry
Pentagon Reviews Anthropic Partnership After Claude AI Reportedly Used in Operation Targeting Nicolás Maduro
President Donald Trump and Hip-Hop’s Political Realignment: Pardons, Public Endorsements, and the Struggle Over Cultural Influence
China’s EV Makers Face Mandatory Return to Physical Buttons and Door Handles in Driver-Distraction Safety Overhaul
Goldman Sachs and DP World Executive Resignations: Elite-Reputation Risk and Corporate Governance Fallout From the Epstein Disclosures
‘Amelia’: The UK Government’s Anti-Extremism Game Villain Who Became a Protest Symbol
Peter Mandelson Asked to Testify Before US Congress Over Jeffrey Epstein Links
×