Attaullah Baig has filed a lawsuit against Meta and its executives, accusing them of retaliation over critical cybersecurity failures.

In a lawsuit filed Monday, the former head of security for the messaging app accused the social media company of putting billions of users at risk. Meta pushed back on his claim.

Attaullah Baig worked as Head of Security for WhatsApp and Meta for just over four years before he was dismissed in April 2025. Now he’s bringing a lawsuit against his former employer, alleging that WhatsApp contains security flaws that violate GDPR laws and Meta’s agreement with the FTC.

The former head of security at WhatsApp alleges Meta Platforms Inc. fired him in February because of whistleblowing and escalating privacy and cybersecurity concerns up to its CEO.

SAN FRANCISCO, CA — A former top cybersecurity executive at WhatsApp has filed a lawsuit against Meta, the parent company of the messaging app, alleging that the tech giant ignored critical security flaws and put billions of users at risk.

On Monday, the former head of security for the Meta-owed messaging app filed a federal whistleblower lawsuit that tells a far different narrative. The suit, filed in US District Court for the District of Northern California,

A former WhatsApp employee has filed a lawsuit that alleges he was fired by the Meta technology company for blowing the whistle on the app's security flaws.

SAN FRANCISCO - A former top security executive at WhatsApp filed a federal lawsuit on Sept 8 alleging that parent company Meta systematically violated cyber security regulations and retaliated against him for reporting the failures.

The suit, brought by Attaullah Baig (who says he was WhatsApp’s head of security from 2021 to 2025), alleges that roughly 1,500 WhatsApp engineers had unrestricted access to sensitive user data and could copy,

The engineer said Meta violated terms of an earlier settlement with the FTC that required a robust security program and that stealing accounts remained too easy.

WhatsApp’s ex security chief accuses Meta of putting billions at risk - Lawsuit claims 100,000 accounts are hacked every day, and that 1,500 Meta engineers had access to sensitive user information