Meta Platforms, Inc., the parent company of Facebook, Instagram, and WhatsApp, announced on Monday its intention to file a complaint against the Israeli spyware firm NSO Group. The complaint alleges that NSO Group has failed to comply with a court order that prohibits the targeting of WhatsApp users. Meta claims that NSO has engaged in phishing campaigns designed to trick users into clicking links that lead to malicious websites. The company is urging the US justice system to hold NSO Group in contempt for these violations. This action follows a previous legal dispute in which NSO was found liable for targeting more than a thousand WhatsApp users using its Pegasus spyware, resulting in a $167 million penalty and a blacklist designation by the US government. Meta reassured users that their messages and calls on WhatsApp remain protected by end-to-end encryption and advised them to keep their apps updated and report any suspicious activity. The Pegasus spyware exploits vulnerabilities in software, particularly 'zero-day vulnerabilities,' to perform offensive cyber actions against devices and operating systems.