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Capabilities 56 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....Read more

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....Read more

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....Read more

Experience 11 results

Experience

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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....Read more

Experience

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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....Read more

Experience

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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....Read more
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Insights & News 541 results

Investigations, Enforcement, & Compliance Alerts

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February 18, 2026

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3 Min Read

Beyond the CMMC: New Cybersecurity Assessments for Government Contractors

The General Services Administration (GSA) recently announced changes to procedural guidance that may affect contractor eligibility for GSA contracts. GSA issued the IT Security Procedural Guide: Protecting Controlled Unclassified Information (CUI) in Nonfederal Systems and Organizations Process CIO-IT Security-21-112, which set out a cybersecurity framework for protecting CUI that is similar to the Cybersecurity Maturity Model Certification (CMMC) for DoD contracts. 

Article

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January 30, 2026

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2 Min Read

DOJ Whistleblower Programs: How We Got Here

This article was originally published in Corporate Compliance Insights. Any opinions in this article are not those of Winston & Strawn or its clients. The opinions in this article are the authors’ opinions only....Read more

Benefits Blast

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January 30, 2026

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2 Min Read

New Executive Order Targets Proxy Advisory Firms: Key ERISA Implications

On December 11, 2025, President Trump issued an executive order (the Order) targeting the two major proxy advisory firms, ISS and Glass Lewis. The Order asserts that these firms often prioritize political agendas, particularly diversity, equity, and inclusion (DEI) and environmental, social, and governance (ESG) initiatives, over investor returns.  As a result, the Order directed the US Department of Labor (DOL) and other agencies to take certain actions. The resulting DOL action could have significant impact for ERISA plan fiduciaries.

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Other Results 25 results

Law Glossary

What Is Consumer Fraud?

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....Read more

Site Content


Scam & Fraud Alerts

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....Read more

Site Content

What Is the Securities Act of 1933?

The Securities Act of 1933 (as amended, the “Securities Act”) was passed to ensure that investors have financial and other important information about securities that are being sold publicly. It also bans the use of fraud, deceit, and misrepresentation in the sales of securities. The Securities Act, which is also referred to as the “truth in securities” law, is part of a legislative effort to govern and oversee the securities industry....Read more
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