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NSO Group has filed an appeal to overturn a U.S. federal court's permanent injunction that prohibits the company from targeting WhatsApp with its Pegasus spyware. The injunction, issued by Judge Phyllis Hamilton in the Northern District of California, found that NSO Group had improperly used WhatsApp's infrastructure to target approximately 1,400 users with zero-click exploits. NSO argues that the ruling misapplies the Computer Fraud and Abuse Act (CFAA) and mischaracterizes how Pegasus operates, claiming that the order could force the company out of business and disrupt law enforcement and intelligence operations that rely on its technology.
In its motion to stay the injunction pending appeal, NSO Group emphasized the "catastrophic" and "irreparable" harm the order would cause, including the requirement to destroy code that interacts with WhatsApp. The company also contends that the injunction would prevent it from engaging in lawful business activities, such as developing and licensing products for authorized government investigations, while leaving competitors unaffected. NSO has recently appointed a former U.S. envoy to Israel as executive chairman and confirmed new U.S. investors, underscoring the high stakes of the legal battle for its future operations and partnerships.
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NSO Group filed a motion seeking to stay the permanent injunction, arguing it would cause irreparable harm, threaten the company's survival, and block lawful future work with U.S. law enforcement and intelligence customers.
A permanent injunction was entered against NSO Group preventing it from using Pegasus to target WhatsApp and requiring actions affecting code tied to its operations. The order became the basis for NSO's subsequent appeal and request for relief.
NSO Group recently named a former U.S. envoy to Israel as its executive chairman, a leadership move noted alongside its effort to preserve future U.S. government business.
NSO Group confirmed that U.S. investors had purchased the company, marking a significant ownership change referenced in reporting on its legal strategy.
NSO Group's earlier effort to be removed from the U.S. Commerce Department trade blacklist was rejected by the Trump administration, according to the later court filings described in the coverage.
NSO Group said the FBI previously bought a license for its Pegasus spyware, a fact cited in the company's later court arguments about potential U.S. government use of its products.
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A U.S. federal judge has issued a permanent injunction prohibiting the NSO Group, an Israeli spyware company, from targeting or infecting WhatsApp users with its Pegasus spyware. The ruling, delivered by Judge Phyllis J. Hamilton of the Northern District of California, stems from a lawsuit filed by Meta, WhatsApp's parent company, in 2019 after NSO was discovered attempting to compromise approximately 1,400 WhatsApp users, including attorneys, journalists, human rights activists, political dissidents, diplomats, and senior government officials. NSO's campaign involved creating fake WhatsApp accounts and targeting Meta's infrastructure to deploy Pegasus, a sophisticated zero-click spyware tool known for exploiting vulnerabilities in widely used software. The court found that NSO's actions caused direct business harm to Meta by undermining the privacy and security assurances that WhatsApp offers its users, particularly its end-to-end encryption based on the Signal Protocol. Judge Hamilton emphasized that unauthorized access to users' personal information constitutes more than reputational damage; it directly interferes with the core service Meta provides. In addition to the injunction, the court ordered NSO to delete any data obtained from targeting WhatsApp users. The judge also reduced the punitive damages awarded to Meta from $167 million to $4 million, citing legal precedents regarding the proportionality of damages to the conduct in question. While NSO argued that the injunction could force it out of business, the company stated that the ruling does not apply to its customers, who may continue using its technology, though legal experts and advocates for spyware victims dispute this interpretation. The decision is seen as a significant precedent for technology companies seeking to protect their platforms from commercial spyware and unlawful surveillance. Will Cathcart, head of WhatsApp, celebrated the ruling as a victory for user privacy and a warning to those who attempt to circumvent encryption protections. The case highlights the ongoing legal and ethical challenges posed by commercial spyware vendors and the importance of judicial intervention in safeguarding digital privacy. The ruling is the culmination of six years of litigation and is expected to influence future cases involving unlawful electronic surveillance. NSO Group, recently acquired by a consortium led by Hollywood producer Robert Simonds, is reviewing the decision but welcomed the reduction in damages. Privacy advocates have praised the court's recognition of the irreparable harm caused by circumventing end-to-end encryption and the broader implications for protecting civil society from targeted surveillance.
Jun 29, 2026
A U.S. federal judge has issued a permanent injunction against the Israeli spyware vendor NSO Group, prohibiting the company from using its technology to hack WhatsApp, one of the world's most widely used encrypted messaging applications. The court found that NSO Group had illegally reverse-engineered WhatsApp using a zero-day exploit, which resulted in the compromise of approximately 1,400 user devices. This exploit allowed unauthorized access to personal information, undermining the security and privacy of WhatsApp users globally. The case was brought before the U.S. District Court for the Northern District of California, where Judge Phyllis Hamilton presided over the proceedings. A California jury previously determined that NSO Group's actions constituted a breach, and initially awarded $167 million in punitive damages to Meta, WhatsApp's parent company. NSO Group appealed the ruling, arguing that the damages were excessive and that the injunction would effectively shut down its operations. In her final order, Judge Hamilton reduced the damages to $4 million but maintained the permanent injunction, emphasizing the broader harm caused by unauthorized access to encrypted personal information. The court's decision also requires NSO Group to destroy any code used in the WhatsApp hack, further limiting the company's ability to conduct similar operations in the future. Meta representatives welcomed the verdict, describing it as a significant advancement for user privacy and security. The ruling highlighted NSO Group's alleged role in enabling governments to target dissidents, political opponents, and journalists through its spyware. The case underscores the legal and ethical challenges posed by commercial spyware vendors and their impact on global digital privacy. The court's findings reinforce the importance of robust encryption and the need for legal protections against unauthorized surveillance. The decision sets a precedent for holding spyware vendors accountable for facilitating unauthorized access to secure communications platforms. The outcome of this litigation may influence future regulatory and legal actions against similar companies. The case also demonstrates the willingness of U.S. courts to intervene in matters involving foreign technology firms and the protection of user data. The permanent injunction serves as a warning to other entities considering the development or deployment of similar surveillance tools. The legal battle between Meta and NSO Group has drawn international attention to the risks associated with commercial spyware and the necessity of safeguarding encrypted communications.
Jun 29, 2026
Meta’s WhatsApp said it will ask a U.S. court to hold **NSO Group** in contempt after alleging the spyware vendor again used WhatsApp infrastructure to target users with **Pegasus** spyware, despite a prior court order barring such activity. Citizen Lab said the new allegations point to continued targeted surveillance through messaging platforms, with researchers arguing the reported conduct strengthens the case for ongoing sanctions and further legal consequences against NSO. The allegations fit a broader pattern in which Pegasus and similar mobile spyware have been delivered through **zero-click** chains in apps such as WhatsApp and iMessage, often leaving only limited forensic traces. Prior reporting and technical analysis have tied Pegasus to exploits including `CVE-2019-3568`, while later research highlighted newer WhatsApp- and Apple-related exploit chains, artifacts such as **CASCADEFAIL**, and the need for high-risk organizations to rely on mobile telemetry, network monitoring, forensic review, and protections such as Apple **Lockdown Mode** to detect or blunt sophisticated mobile intrusions.
Jun 29, 2026