Former WhatsApp security head Attaullah Baig has sued Meta, alleging the company ignored major security and privacy flaws that put billions of users at risk. Filed in California, the lawsuit claims thousands of employees could access sensitive data, daily hacks of over 100,000 accounts went unaddressed, and Meta rejected his security proposals. Baig warned top executives, including Mark Zuckerberg, but was retaliated against and fired. Represented by Psst.org and a law firm, he argues Meta violated a 2019 FTC privacy settlement and securities laws. Meta denies the claims, calling them distorted, while Baig seeks accountability and user protection.