Meredith Whittaker

Current Company

Signal Foundation — President

The Privacy Warrior Leading Signal's Fight for Encryption

Meredith Whittaker's leadership of the Signal Foundation places her at the center of one of the most consequential debates in technology: whether encrypted communication is a fundamental right in a democratic society or a tool that enables criminals and terrorists to operate beyond the reach of law enforcement. Under her presidency, Signal has grown from a niche tool used primarily by journalists, activists, and security researchers to a mainstream messaging platform with over 100 million users — while maintaining its absolute commitment to end-to-end encryption that even Signal itself cannot access or decrypt.

Whittaker's position on encryption is uncompromising: she has argued that any backdoor or 'lawful access' mechanism would inevitably be exploited by authoritarian governments, criminal hackers, and domestic abusers, and that the choice is binary — either communication is encrypted and private, or it is not. This stance has put her in direct conflict with governments around the world, including the European Union (whose proposed Chat Control regulation would require scanning of encrypted messages), the United Kingdom (whose Online Safety Act includes provisions that could force messaging apps to undermine encryption), and law enforcement agencies in the United States that have long sought technical access to encrypted communications.

From Google Walkouts to the Fight Against Surveillance Capitalism

Before leading Signal, Whittaker spent over a decade at Google, where her career trajectory illuminated the tensions at the heart of Big Tech's relationship with society. She founded Google's Open Research Group, facilitating collaborations between Google researchers and the academic community, and co-founded the AI Now Institute at NYU — the first academic research center dedicated to studying the social implications of artificial intelligence. But it was her role in organizing the 2018 Google walkout — in which 20,000 employees protested the company's handling of sexual harassment allegations against senior executives, as well as its involvement in military AI projects — that transformed her from an insider critic into a public advocate for fundamental change in how technology companies operate.

Whittaker left Google in 2019, concluding that the surveillance-capitalism business model — in which technology companies harvest and monetize user data — is fundamentally incompatible with the values of privacy, autonomy, and democratic governance that she considers non-negotiable. Her leadership of Signal represents the most concrete expression of an alternative: a technology organization that generates zero revenue from user data, operates on donations and grants, publishes its source code for public inspection, and exists solely to provide a communication tool that treats user privacy as sacred. Whether Signal's model can scale — whether a nonprofit can sustain a global communications platform without the advertising revenue that funds its competitors — remains an open question, but Whittaker has staked her career on the proposition that it must.