Cases
We’re fighting back against unauthorized data collection and privacy invasions. See how we’re holding big tech accountable—from Wesch v. Yodlee to our other landmark lawsuits.
Investigations
Wondering if your rights were violated? Our team digs deep to uncover misuse and demand accountability. Get a free case evaluation and take back control of your data.
News
Stay on top of the latest privacy laws, major data breaches, and tech updates. Learn what’s changing—and how to protect yourself in a fast-evolving digital world.
Commercial Litigation Lawyers in NYC
Lowey Dannenberg:
bringing experience and discipline to Commercial LitigationLowey represents Fortune 100 companies, small businesses, and individuals.
Lowey Dannenberg’s attorneys are routinely recognized by the courts and clients as expert practitioners in the field of complex litigation. Lowey’s expertise has been highlighted in In-House Law Departments at the Top 500 Companies,” where the firm was identified as a Go-to Law Firm” for Fortune 100 companies.
Our People

Christian Levis
Data Breach, Privacy
Christian Levis is a partner at Lowey Dannenberg, P.C., and head of the firm’s data breach and privacy practice group.

Amanda Fiorilla
Data Breach, Privacy
Amanda Fiorilla is a Senior Associate and Vice Chair of Lowey Dannenberg’s Data Breach & Privacy Practice.
Cases
Real Results
Lowey’s data privacy team is trusted by consumers and institutional clients alike to take on cutting-edge privacy challenges — from unauthorized data collection to credential stuffing and vendor breaches.
Yen-LIBOR
In February 2013, Lowey Dannenberg filed a proposed class action against global financial institutions responsible for setting the Euro Interbank Offered Rate (Euribor), a global reference rate used to benchmark and price settle more than $200 trillion of financial products, including Euribor futures contracts traded on the NYSE LIFFE exchange. Lowey Dannenberg secured settlement agreements from three of the defendants— Barclays, Deutsche Bank, and HSBC —totaling $309 million. The Court has granted final approval to all three settlements.
The case is currently pending before Judge P. Kevin Castel and the litigation is ongoing. Defendants settled with global regulators, paid billions in fines, and were granted ACPERA conditional leniency from the DOJ for alleged anti-competitive conduct in the Euribor market.
Sullivan v. Barclays PLC et al., Case No. 13-cv-2811 (S.D.N.Y.)
Euribor
In February 2013, Lowey Dannenberg filed a proposed class action against global financial institutions responsible for setting the Euro Interbank Offered Rate (Euribor), a global reference rate used to benchmark and price settle more than $200 trillion of financial products, including Euribor futures contracts traded on the NYSE LIFFE exchange. Lowey Dannenberg secured settlement agreements from three of the defendants— Barclays, Deutsche Bank, and HSBC —totaling $309 million. The Court has granted final approval to all three settlements.
The case is currently pending before Judge P. Kevin Castel and the litigation is ongoing. Defendants settled with global regulators, paid billions in fines, and were granted ACPERA conditional leniency from the DOJ for alleged anti-competitive conduct in the Euribor market.
Sullivan v. Barclays PLC et al., Case No. 13-cv-2811 (S.D.N.Y.)
Swiss Franc LIBOR
In February 2015, Lowey Dannenberg filed a proposed class action against global financial institutions responsible for setting the London Interbank Offered Rate for the Swiss Franc (Swiss Franc LIBOR). Defendants settled with global regulators, paid billions in fines and were granted leniency by the European Commission for alleged anti-competitive conduct in the Swiss Franc LIBOR and Swiss Franc LIBOR derivatives market. Defendant JP Morgan agreed to a $22 million settlement and Judge Sidney Stein preliminarily approved this settlement on August 16, 2017. Judge Stein issued a decision on defendants’ motions to dismiss on September 25, 2017, finding personal jurisdiction over all of the bank defendants and granting leave to amend the complaint. Sonterra Capital Master Fund Ltd. v. Credit Suisse Group AG et al., Case No. 15-cv-0871 (S.D.N.Y.) The case is currently pending before Judge P. Kevin Castel and the litigation is ongoing. Defendants settled with global regulators, paid billions in fines, and were granted ACPERA conditional leniency from the DOJ for alleged anti-competitive conduct in the Euribor market.
Sullivan v. Barclays PLC et al., Case No. 13-cv-2811 (S.D.N.Y.)
SIBOR/SOR
In February 2013, Lowey Dannenberg filed a proposed class action against global financial institutions responsible for setting the Euro Interbank Offered Rate (Euribor), a global reference rate used to benchmark and price settle more than $200 trillion of financial products, including Euribor futures contracts traded on the NYSE LIFFE exchange. Lowey Dannenberg secured settlement agreements from three of the defendants— Barclays, Deutsche Bank, and HSBC —totaling $309 million. The Court has granted final approval to all three settlements.
The case is currently pending before Judge P. Kevin Castel and the litigation is ongoing. Defendants settled with global regulators, paid billions in fines, and were granted ACPERA conditional leniency from the DOJ for alleged anti-competitive conduct in the Euribor market.
Sullivan v. Barclays PLC et al., Case No. 13-cv-2811 (S.D.N.Y.)
Sterling LIBOR
Lowey Dannenberg filed a proposed class action in July 2015 alleging that the 20 global financial institutions responsible for setting the Singapore Interbank Offered Rate (“SIBOR”) and the Singapore Swap Offer Rate (“SOR”) manipulated these benchmark rates to benefit their own derivatives positions at the expense of U.S. investors. The Monetary Authority of Singapore investigated, finding manipulation by these financial institutions in SIBOR and SOR, imposing fines and other remedial measures. In August 2017, Judge Alvin K. Hellerstein sustained plaintiffs’ Sherman Act claims against defendants Bank of America, Citibank, JPMorgan Chase Bank. FrontPoint Asian Event Driven Fund, L.P. v. Citibank, N.A., et al., 16-cv-5263 (S.D.N.Y.)
Sullivan v. Barclays PLC et al., Case No. 13-cv-2811 (S.D.N.Y.)
Australian Bank Bill Swap Reference Rate
Lowey Dannenberg filed a proposed class action in August 2016 alleging that global financial institutions responsible for setting the Bank Bill Swap Reference Rate (“BBSW”), the primary interest rate benchmark used to price and settle Australian dollar-denominated derivatives, colluded to manipulate the benchmark rate to profit in their related derivatives positions at the expense of investors. Australia and New Zealand Banking Group, Limited and National Australia Bank have settled with the Australian Securities and Investments Commission, agreeing to pay 100 million Australian dollars in fines and admitting to wrongdoing. This case is currently pending before Judge Lewis A. Kaplan. Dennis, et al. v. JPMorgan Chase & Co., et al., Case No. 16-cv-06496-LAK (S.D.N.Y.)The case is currently pending before Judge P. Kevin Castel and the litigation is ongoing. Defendants settled with global regulators, paid billions in fines, and were granted ACPERA conditional leniency from the DOJ for alleged anti-competitive conduct in the Euribor market.
Sullivan v. Barclays PLC et al., Case No. 13-cv-2811 (S.D.N.Y.)
FX Manipulation
Lowey Dannenberg filed a proposed class action in August 2016 alleging that global financial institutions responsible for setting the Bank Bill Swap Reference Rate (“BBSW”), the primary interest rate benchmark used to price and settle Australian dollar-denominated derivatives, colluded to manipulate the benchmark rate to profit in their related derivatives positions at the expense of investors. Australia and New Zealand Banking Group, Limited and National Australia Bank have settled with the Australian Securities and Investments Commission, agreeing to pay 100 million Australian dollars in fines and admitting to wrongdoing. This case is currently pending before Judge Lewis A. Kaplan. Dennis, et al. v. JPMorgan Chase & Co., et al., Case No. 16-cv-06496-LAK (S.D.N.Y.)
“The successful prosecution of the complex claims in this case required the participation of highly skilled and specialized attorneys.”
~ Hon. James S. Ware, United States District Judge, N.D. California
Landmark Outcomes
Lowey Dannenberg served as lead counsel in a class action against Juniper Networks, Inc., alleging the corporation and executives fraudulently concealed the backdating of millions of stock options. Lowey secured one of the largest settlements in an options backdating case: a $169.5 million settlement with Juniper Networks and certain officers and directors, and a $500,000 settlement with Ernst & Young LLP, the company’s auditors.
In re Juniper Networks, Inc. Sec. Litig., No. 06-04327 JW (N.D. Cal).
Investigations
If your privacy rights have been impacted, we’re here to help. Use the form below for a free case evaluation.
At Lowey Dannenberg, we take on data privacy litigation with a single focus: results for people, not big tech. Our privacy team goes beyond the surface—combining legal expertise with technological know-how—to uncover how companies misuse your data and push for accountability through litigation, investigations, and consumer advocacy.
News
The world is waking up to the cost of data privacy violations—and we’re here to break it down.
Our articles cover the latest developments in U.S. and global privacy law, offer unique perspectives on emerging technologies, and explain what it all means for you. Whether it's a new law, a major data breach, or a subtle shift in how companies track users, we’ll help you understand what’s happening—and what you can do to protect yourself.
