Latest Essays

Page 8

Web 3.0 Requires Data Integrity

New integrity-focused standards are necessary to enable the trusted AI services of tomorrow.

  • Bruce Schneier and Davi Ottenheimer
  • Communications of the ACM
  • March 24, 2025

If you’ve ever taken a computer security class, you’ve probably learned about the three legs of computer security—confidentiality, integrity, and availability—known as the CIA triad. When we talk about a system being secure, that’s what we’re referring to. All are important, but to different degrees in different contexts. In a world populated by artificial intelligence (AI) systems and artificial intelligent agents, integrity will be paramount.

What is data integrity? It’s ensuring that no one can modify data—that’s the security angle—but it’s much more than that. It encompasses accuracy, completeness, and quality of data—all over both time and space. It’s preventing accidental data loss; the “undo” button is a primitive integrity measure. It’s also making sure that data is accurate when it’s collected—that it comes from a trustworthy source, that nothing important is missing, and that it doesn’t change as it moves from format to format. The ability to restart your computer is another integrity measure…

What the UK Wants from Apple Will Make Our Phones Less Safe

Once a backdoor to user data exists, everyone will want in.

  • Foreign Policy
  • February 25, 2025

Last month, the UK government demanded that Apple weaken the security of iCloud for users worldwide. On Friday, Apple took steps to comply for users in the United Kingdom. But the British law is written in a way that requires Apple to give its government access to anyone, anywhere in the world. If the government demands Apple weaken its security worldwide, it would increase everyone’s cyber-risk in an already dangerous world.

If you’re an iCloud user, you have the option of turning on something called “advanced data protection,” or ADP. In that mode, a majority of your data is end-to-end encrypted. This means that no one, not even anyone at Apple, can read that data. It’s a restriction enforced by mathematics—cryptography—and not policy. Even if someone successfully hacks iCloud, they can’t read ADP-protected data…

DOGE Is Hacking America

The U.S. government has experienced what may be the most consequential security breach in its history.

  • Bruce Schneier and Davi Ottenheimer
  • Foreign Policy
  • February 11, 2025

In the span of just weeks, the US government has experienced what may be the most consequential security breach in its history—not through a sophisticated cyberattack or an act of foreign espionage, but through official orders by a billionaire with a poorly defined government role. And the implications for national security are profound.

First, it was reported that people associated with the newly created Department of Government Efficiency (DOGE) had accessed the US Treasury computer system, giving them the ability to collect data on and potentially control the department’s roughly …

It’s Time to Worry About DOGE’s AI Plans

Welcome to the end of the human civil servant.

  • Bruce Schneier and Nathan E. Sanders
  • The Atlantic
  • February 10, 2025

Donald Trump and Elon Musk’s chaotic approach to reform is upending government operations. Critical functions have been halted, tens of thousands of federal staffers are being encouraged to resign, and congressional mandates are being disregarded. The next phase: The Department of Government Efficiency reportedly wants to use AI to cut costs. According to The Washington Post, Musk’s group has started to run sensitive data from government systems through AI programs to analyze spending and determine what could be pruned. This may lead to the elimination of human jobs in favor of automation. As one government official who has been tracking Musk’s DOGE team told the…

AIs and Robots Should Sound Robotic

Here's a simple way to identify who, or what, is talking to us

  • Barath Raghavan and Bruce Schneier
  • IEEE Spectrum
  • January 30, 2025

Most people know that robots no longer sound like tinny trash cans. They sound like Siri, Alexa, and Gemini. They sound like the voices in labyrinthine customer support phone trees. And even those robot voices are being made obsolete by new AI-generated voices that can mimic every vocal nuance and tic of human speech, down to specific regional accents. And with just a few seconds of audio, AI can now clone someone’s specific voice.

This technology will replace humans in many areas. Automated customer support will save money by cutting staffing at …

AI Will Write Complex Laws

AI is poised to help legislators write more intricate laws, exercising increasing control over the executive.

  • Nathan E. Sanders and Bruce Schneier
  • Lawfare
  • January 16, 2025

Artificial intelligence (AI) is writing law today. This has required no changes in legislative procedure or the rules of legislative bodies—all it takes is one legislator, or legislative assistant, to use generative AI in the process of drafting a bill.

In fact, the use of AI by legislators is only likely to become more prevalent. There are currently projects in the US House, US Senate, and legislatures around the world to trial the use of AI in various ways: searching databases, drafting text, summarizing meetings, performing policy research and analysis, and more. A Brazilian municipality …

AI Mistakes Are Very Different from Human Mistakes

We need new security systems designed to deal with their weirdness

  • Bruce Schneier and Nathan E. Sanders
  • IEEE Spectrum
  • January 13, 2025

Humans make mistakes all the time. All of us do, every day, in tasks both new and routine. Some of our mistakes are minor and some are catastrophic. Mistakes can break trust with our friends, lose the confidence of our bosses, and sometimes be the difference between life and death.

Over the millennia, we have created security systems to deal with the sorts of mistakes humans commonly make. These days, casinos rotate their dealers regularly, because they make mistakes if they do the same task for too long. Hospital personnel write on limbs before surgery so that doctors operate on the correct body part, and they count surgical instruments to make sure none were left inside the body. From copyediting to double-entry bookkeeping to appellate courts, we humans have gotten really good at correcting human mistakes…

Trust Issues

The closed corporate ecosystem is the problem.

  • Bruce Schneier and Nathan E. Sanders
  • Boston Review
  • December 6, 2024

This essay appeared as a response to Evgeny Morozov in Boston Review‘s forum, “The AI We Deserve.”

For a technology that seems startling in its modernity, AI sure has a long history. Google Translate, OpenAI chatbots, and Meta AI image generators are built on decades of advancements in linguistics, signal processing, statistics, and other fields going back to the early days of computing—and, often, on seed funding from the U.S. Department of Defense. But today’s tools are hardly the intentional product of the diverse generations of innovators that came before. We agree with Morozov that the “refuseniks,” as he …

The Apocalypse That Wasn’t: AI Was Everywhere in 2024’s Elections, but Deepfakes and Misinformation Were Only Part of the Picture

  • Bruce Schneier and Nathan E. Sanders
  • The Conversation
  • December 4, 2024

This essay also appeared in Cascadia Daily News, Commonwealth Beacon, Fast Company, Gizmodo, and the Seattle Post-Intelligencer.

It’s been the biggest year for elections in human history: 2024 is a “super-cycle” year in which 3.7 billion eligible voters in 72 countries had the chance to go the polls. These are also the first AI elections, where many feared that deepfakes and artificial intelligence-generated misinformation would overwhelm the democratic processes. As 2024 draws to a close, it’s instructive to take stock of how democracy did…

Algorithms Are Coming for Democracy—but It’s Not All Bad

  • Bruce Schneier and Nathan E. Sanders
  • Wired
  • November 27, 2024

In 2025, AI is poised to change every aspect of democratic politics—but it won’t necessarily be for the worse.

India’s prime minister, Narendra Modi, has used AI to translate his speeches for his multilingual electorate in real time, demonstrating how AI can help diverse democracies to be more inclusive. AI avatars were used by presidential candidates in South Korea in electioneering, enabling them to provide answers to thousands of voters’ questions simultaneously. We are also starting to see AI tools aid fundraising and get-out-the-vote efforts. AI techniques are starting to augment more traditional polling methods, helping campaigns get cheaper and faster data. And congressional candidates have started using AI robocallers to engage voters on issues. In 2025, these trends will continue. AI doesn’t need to be superior to human experts to augment the labor of an overworked canvasser, or to write ad copy similar to that of a junior campaign staffer or volunteer. Politics is competitive, and any technology that can bestow an advantage, or even just garner attention, will be used…

Sidebar photo of Bruce Schneier by Joe MacInnis.