Brittany Kaiser is a data rights activist best known for her role as a whistleblower in the Cambridge Analytica scandal. She has since become a leading advocate for digital privacy, transparency, and the ethical use of personal data. Kaiser founded the #OwnYourData campaign, promoting individual control over personal information in the digital economy. She co-founded the Digital Asset Trade Association (DATA) to advance blockchain and decentralized technologies for data ownership. Her book Targeted and appearances in the documentary The Great Hack detail her experiences and policy vision. Kaiser works with governments, NGOs, and tech companies to craft stronger data protection laws and empower individuals to monetize and safeguard their digital identities.