Site Search
Professionals 166 results
Capabilities 61 results
Practice Area
Government Program Fraud, False Claims Act & Qui Tam Litigation
Investigations and litigation involving alleged fraud against the government pose a significant and growing threat to organizations and individuals across all industries that engage directly or indirectly in business with federal, state, and/or local governments. The government makes aggressive use of its extensive criminal and civil investigatory powers to root out alleged fraud and abuse implicating government funds, including one of its most powerful civil enforcement tools—the federal False Claims Act (FCA)—and similar state false claims statutes.
Practice Area
White Collar & Government Investigations
Ranked Tier 1 Nationally for “Criminal Defense: White Collar” by Best Law Firms®2025, and recognized for “Corporate Crime & Investigations: Highly Regarded – Nationwide” by Chambers USA in 2025, Winston’s White Collar & Government Investigations Practice assists individuals, companies, and organizations with government investigations and enforcement matters; related criminal and civil litigation; trials; appeals; congressional oversight; internal investigations; and compliance counseling and program development and enhancement. We are comprised of 80+ litigators, with more than a dozen former prosecutors from the SEC, Main Justice, and U.S. Attorneys’ Offices nationwide, including four former U.S. Attorneys, Regional Supervisors, and a former Assistant Director, Enforcement Division, SEC. We are known for our zealous advocacy, our unyielding commitment to our clients, and for protecting and defending clients’ interests with legal acumen that’s second to none.
Practice Area
Commercial Litigation & Disputes
Winston represents clients in virtually every type of dispute that could arise from operating a business. While our primary objective is to protect our clients from the need to engage in litigation and enter the courtroom, we take pride in our heavyweight litigation experience and the knowledge that corporate America has repeatedly retained us not just for “bet-the-company” trials, but for “bet-the-industry” cases as well. Our commercial litigators’ track record of success earned the team a national Tier 1 ranking in Best Law Firms® 2025. Our practice is anchored by seasoned litigators, many of whom have been recognized by in-house counsel and their peers as top practitioners in their fields.
Experience 11 results
Experience
|July 15, 2025
Winston Represented Cuadrilla Capital in the Acquisition of TigerGraph
Winston represented Cuadrilla Capital, a leading enterprise software investment firm, in the strategic investment of TigerGraph, an enterprise AI infrastructure and graph database leader. The investment will facilitate TigerGraph’s continued innovation and accelerate its business growth by positioning TigerGraph to expand its market-leading capabilities in fraud detection, entity resolution, customer 360 initiatives, supply chain management, and other mission-critical enterprise applications.
Experience
|May 9, 2025
An Am Law LOTW Shout Out-Worthy Gold Medal Victory In $Jenner
Winston, led by partners Jeffrey Steinfeld, John Schreiber, and George Mastoris, secured full dismissal of a high-profile securities class action involving hundred of millions of dollars in $Jenner memecoin trades. Plaintiffs alleged securities fraud under federal and California laws. The team was recognized in Am Law’s Litigator of the Week column for the win.
Experience
|April 12, 2024
Winston Wins Unanimous Supreme Court Case Clarifying Securities Fraud Liability
Winston secured a unanimous victory in the U.S. Supreme Court for Macquarie Infrastructure Corp. in a federal securities class action that was filed after the announcement of the company’s 2017 financial results and 2018 dividend guidance caused US$2+B drop in market cap. The Court ruled that silence does not equal fraud, even if SEC regulations require disclosure. This decision resolves a longstanding disagreement among the lower courts about the scope of securities fraud liability under Rule 10b-5. It makes clear that a company cannot be liable under that provision for a pure omission of material information, even if SEC regulations required the information to be disclosed. This is particularly important for disclosures under Item 303 of SEC Regulation S-K, which requires management to make complex judgments about the likelihood of future events.
Insights & News 578 results
In the Media
|April 15, 2026
|2 Min Read
Anne Murray and Guy Singer Join Winston in White Collar & Government Investigations Practice
Winston & Strawn recently announced that Anne Murray and Guy Singer joined the firm’s Washington, D.C. and New York offices respectively as partners in the Litigation Department. The two bring invaluable white collar defense, corporate investigations, and compliance experience to the firm’s White Collar & Government Investigations Practice. Both are seasoned white-collar defense and compliance attorneys, who represent companies and individuals in matters involving fraud, bribery, corruption, and ethics issues.
In the Media
|April 10, 2026
|2 Min Read
Ashley Chung Joins Winston in Chicago
Winston & Strawn recently announced that Ashley Chung has rejoined the firm’s Chicago office as a partner in the Litigation Department and a member of its Appellate & Critical Motions practice after serving as an Assistant U.S. Attorney. During her tenure at the U.S. Attorney’s Office for the Northern District of Illinois, Ashley prosecuted more than 50 cases, including public corruption, financial fraud, money laundering, child exploitation, and violent crime matters. She oversaw and determined strategy from the investigative stage through charging, pre-trial litigation, plea negotiations or trials, and sentencings. Prior to her public service, Ashley worked on complex commercial litigation, white-collar and regulatory-facing matters, and internal investigations.
Press Release
|April 7, 2026
|2 Min Read
Washington, D.C. & New York – April 7, 2026 – Winston & Strawn LLP announced today that Anne Murray and Guy Singer have joined the firm’s Litigation Department as partners in its Washington, D.C. and New York offices respectively.
Other Results 29 results
Law Glossary
Consumer fraud is commonly defined as deceptive business practices that cause consumers to suffer financial or other losses. The victims believe they are participating in a legal and valid business transaction when they are actually being defrauded. Fraud against consumers is often related to false promises or inaccurate claims made to consumers, as well as practices that directly cheat consumers out of their money.
Site Content
What Is the Foreign Corrupt Practices Act (FCPA)?
The Foreign Corrupt Practices Act (FCPA) is a federal statute prohibiting United States citizens and entities from engaging in corruption. It has two main elements: (1) anti-bribery provisions, forbidding the giving or offering of anything of value to a foreign government official for business and (2) accounting requirements, establishing mandatory practice guidelines for companies to maintain accurate records and internal controls. The FCPA is enforced by the Department of Justice (DOJ) and the Securities and Exchange Commission (SEC).
Site Content
Like many reputable law firms and global organizations, Winston & Strawn LLP’s brand and the names of our attorneys and business professionals are increasingly being used to conduct scam and fraud campaigns. These scams can occur in many different forms and are constantly evolving.