
In "Privacy is Power," Carissa Veliz reveals why your data is the world's most valuable currency. Named an Economist Best Book of the Year, this eye-opening manifesto asks: What happens when tech giants know you better than you know yourself?
Carissa Véliz, the author of Privacy Is Power, is an award-winning philosopher and a leading expert in digital ethics, AI governance, and data privacy.
As an Associate Professor at the University of Oxford’s Institute for Ethics in AI, she masterfully combines academic rigor with real-world policy impact. She advises governments, including the UK Parliament and the European Commission, on technology regulation.
Her groundbreaking book, named an Economist Book of the Year, exposes how corporate data exploitation threatens democracy. This work draws from her PhD research at Oxford and the Snowden revelations, which redirected her career path.
Véliz’s influence extends to editing the Oxford Handbook of Digital Ethics and contributing to prominent media outlets such as The New York Times and BBC. She has been recognized with the Herbert A. Simon Award and the Committed Optimists Award, sharing the latter with Noam Chomsky.
Her ideas have significantly shaped global debates on AI accountability. Privacy Is Power has been translated into multiple languages and remains a seminal critique of surveillance capitalism.
Privacy Is Power by Carissa Véliz exposes how corporations, governments, and criminals exploit personal data to manipulate individuals and undermine democracy. It argues that privacy erosion enables power imbalances, fuels surveillance capitalism, and threatens collective freedom. The book combines philosophical insights, real-world examples (e.g., data breaches, targeted ads), and actionable steps to reclaim control over personal information.
This book is essential for privacy-conscious individuals, digital ethics students, policymakers, and skeptics who believe “I have nothing to hide.” It’s also critical for professionals in tech, marketing, or law seeking to understand data exploitation’s societal impacts. Véliz’s accessible writing makes complex topics like surveillance capitalism and algorithmic bias engaging for general readers.
Yes. Véliz dismantles myths about data anonymity and reveals how privacy loss harms autonomy, democracy, and safety. Reviews praise its blend of rigor and practicality—offering tools like encrypted email services (ProtonMail, Tutanota) and advocacy strategies. While some find later chapters dense, its urgent message and actionable advice make it a standout in privacy literature.
Key arguments include:
Véliz argues this mindset ignores how aggregated data enables discrimination, manipulation (e.g., predatory loans), and authoritarianism. For example, location data can reveal health conditions, while browsing history might jeopardize careers. Privacy isn’t about secrecy—it’s about preventing others from exploiting vulnerabilities.
Actionable tips include:
Some reviewers note uneven pacing, with the first chapter being highly accessible while later sections delve into dense philosophical/technical debates. Others argue Véliz underestimates the practicality of individual actions in a data-driven economy. However, most agree the book’s core message about collective responsibility remains vital.
The book warns that mass surveillance enables voter manipulation, suppresses dissent, and concentrates power among tech oligarchs. For example, biased algorithms can skew news feeds, while facial recognition tools target marginalized communities. Véliz frames privacy as foundational to free elections and equitable governance.
Notable lines include:
While Shoshana Zuboff’s book focuses on corporate exploitation, Véliz emphasizes individual/collective agency. Both critique data monopolies, but Privacy Is Power offers more pragmatic solutions (e.g., legislative reforms, personal habits) alongside philosophical arguments.
With AI-driven surveillance expanding (e.g., emotion recognition tech, deepfakes), Véliz’s warnings about data’s corrosive power remain urgent. The book’s advocacy for decentralized systems and ethical AI aligns with 2025 debates about algorithmic transparency and digital rights.
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Privacy isn't merely a personal preference but the foundation of democracy itself.
Users ceased being clients and became products, with advertisers as the real customers.
The narrative about users consciously exchanging data for services was retroactively constructed.
The Bush administration's 'never again' mandate shifted all focus to national security.
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Your phone knows you're pregnant before you've told your partner. It detected the pattern: searches for prenatal vitamins at 2 a.m., a sudden stop at pharmacies on your usual route home, lingering on maternity clothes websites. Within hours, your data profile updates across dozens of servers. Advertisers adjust their targeting. Insurance algorithms recalculate your risk scores. Data brokers add you to lists sold to companies you've never heard of. You haven't announced anything yet, but in the digital realm, your secret is already a commodity being traded, analyzed, and monetized. Welcome to the surveillance economy, where privacy isn't just dying-it's been carved up and sold to the highest bidder.
Before finishing your morning coffee, your phone betrays you 14,000 times. Each weather check broadcasts your location. Traffic cameras with facial recognition map your commute. Fake cell towers harvest your phone's identity. At work, monitoring systems track emails, keystrokes, and social media. Promotional emails contain invisible tracking pixels revealing which device you're using. In stores, WiFi sensors detect your phone's unique signature. AI cameras create heat maps of your movements, analyzing how long you linger and interpreting facial expressions. Medical records enter vast data-sharing networks-the NHS shared millions of patient records with Google's DeepMind, often without consent. Family DNA tests effectively share your genetic profile, creating discrimination risks despite false positive rates reaching 40% for certain conditions. The myth of anonymization crumbles quickly. Just three data points-birth date, gender, and zip code-uniquely identify 87% of Americans. Data brokers maintain lists categorizing people by pregnancy status, divorce history, medical conditions, even sexual assault victimhood. This information feeds targeting systems making consequential decisions about employment, insurance, and opportunities-all without your knowledge or consent.
In 1998, Google founders Larry Page and Sergey Brin warned that "advertising funded search engines will be inherently biased towards the advertisers and away from the needs of consumers." Then the dot-com crash dried up venture capital. Within four years, Google's revenue exploded from $19 million to $3.2 billion - a 3,590% increase - by doing exactly what they'd warned against. The transformation was complete: users became products, advertisers became customers. Google harvested our private thoughts through search profiles. The $3.1 billion DoubleClick acquisition extended surveillance across the web. Gmail and Google Maps weren't innovations - they were data collection mechanisms disguised as services. By the late 1990s, the FTC proposed comprehensive privacy legislation. Then September 11, 2001 changed everything. Privacy regulation was shelved. Intelligence agencies accessed corporate data through the Patriot Act and secret court orders. This marriage of corporate and government monitoring created comprehensive systems for tracking citizens' digital lives. By the time we looked up, the surveillance infrastructure was already built.
Data scientists have created "artificial societies" - digital replicas of you built from social connections, purchases, browsing patterns, and health data. These virtual clones predict exactly how you'll respond to promotions, headlines, or political messages. Cambridge Analytica weaponized this technology, harvesting data from 270,000 Facebook users and their 87 million friends to build psychological warfare tools. They identified vulnerable voters and exploited weaknesses through precisely timed, fear-based content. Their whistleblower believes Brexit wouldn't have succeeded without this interference. Trump won by just 70,000 votes across three swing states - his campaign spent $44 million on nearly 6 million different Facebook ads, including targeted messaging to suppress 3.5 million black voters. This manipulation strikes at autonomy itself - your fundamental right to make genuine choices. Privacy violations enable interference with your decision-making. After Snowden's revelations, terrorism-related Wikipedia searches dropped 30%, proving surveillance awareness alters behavior. Privacy is also collective. When you submit DNA to Ancestry, you expose genetic information shared with relatives who never consented. With just 1.3 million people in a genetic database, researchers can identify anyone. Every piece of information you surrender becomes a thread in a vast surveillance tapestry affecting everyone connected to you.
Personal data is the asbestos of our digital age-cheap to mine, highly useful, fundamentally toxic. The 2015 Ashley Madison breach exposed 30 million users, causing anxiety, job loss, blackmail, broken families, and suicides. Ramona Maria Faghiura's stolen identity led to wrongful arrests and years of legal battles. Institutions storing this data face existential threats. Cambridge Analytica collapsed two months after its voter profiling revelations. The 2017 Equifax breach exposed 147 million Americans to Chinese military hackers seeking blackmail opportunities for recruiting spies. The New York Times demonstrated how purchased location data could track military officials, law enforcement, even President Trump through a Secret Service agent's smartphone. The most chilling example comes from World War II Netherlands, where comprehensive ID cards and IBM's tracking machines enabled the murder of 73% of Dutch Jews-compared to just 25% in France, where census data didn't record religion and a resistance member sabotaged collection. The lesson: comprehensive data collection creates infrastructure for atrocities, even when initially benign. We're building this infrastructure now with little consideration for how future regimes might weaponize it.
The surveillance economy demands radical change. We've transformed society before-establishing workers' rights, banning ozone-depleting chemicals-and we can do it again. Start by eliminating personalized advertising, which normalized surveillance and fractured democracy. Despite promises of relevance, targeted ads increase revenue by only 4%-just $0.00008 per ad-yet advertisers pay 50 times more than for untargeted ads. The math doesn't justify the surveillance. Stop the trade in personal data entirely. Personal information should never be bought, sold, or shared for profit. Reverse default data collection-the default should be no collection, requiring active user opt-in. Bind organizations to fiduciary duties like those binding doctors and lawyers, prioritizing users over stockholders. Mandate cybersecurity standards and ban surveillance technologies prone to abuse-facial recognition, gait recognition, IMSI-catchers, smartphone-hacking software. Individually, choose privacy-friendly alternatives: Signal over WhatsApp, DuckDuckGo over Google, Firefox over Chrome. Use ad blockers and Privacy Badger. Change default settings annually and purge unnecessary data regularly. Go analog when possible-paper records beat digital ones. Pay cash, read physical books, leave your phone home. Demand privacy from companies and governments.
Two futures await. In one, extreme surveillance tracks not just actions but thoughts through biometric sensors and facial expressions. Algorithms decide employment, healthcare, and relationships. Every mistake lives forever, every exploration leaves permanent traces. The alternative: your data remains yours. Conversations stay private. Technology empowers rather than controls. Encryption protects communications. Decentralized systems prevent monopolies. Privacy isn't dead - it's fighting back. After Cambridge Analytica and massive breaches, people understand privacy's value again. GDPR and CCPA provide better regulations. Privacy-respecting alternatives are emerging. Privacy creates space for fair treatment, empowers citizens, and protects free thought. Without it, discrimination becomes automated, conformity stifles innovation, and surveillance infrastructure becomes irreversible. As Aristotle argued, moral indignation - not resignation - is the appropriate response to rights violations. Privacy isn't about hiding - it's about autonomy, dignity, and developing your personality without constant surveillance. Total surveillance isn't inevitable. It's a choice. And the time to choose differently is now.