Apple Announces Post-Quantum Encryption Algorithms for iMessage

Apple announced PQ3, its post-quantum encryption standard based on the Kyber secure key-encapsulation protocol, one of the post-quantum algorithms selected by NIST in 2022. There’s a lot of detail in the Apple blog post, and more in Douglas Stabila’s security analysis. I am of tw … | Continue reading


@schneier.com | 9 months ago

Friday Squid Blogging: Illex Squid and Climate Change

There are correlations between the populations of the Illex Argentines squid and water temperatures. As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered. Read my blog posting guidelines here. | Continue reading


@schneier.com | 9 months ago

AIs Hacking Websites

New research: LLM Agents can Autonomously Hack Websites Abstract: In recent years, large language models (LLMs) have become increasingly capable and can now interact with tools (i.e., call functions), read documents, and recursively call themselves. As a result, these LLMs can no … | Continue reading


@schneier.com | 9 months ago

New Image/Video Prompt Injection Attacks

Simon Willison has been playing with the video processing capabilities of the new Gemini Pro 1.5 model from Google, and it’s really impressive. Which means a lot of scary new video prompt injection attacks. And remember, given the current state of technology, prompt injection att … | Continue reading


@schneier.com | 9 months ago

Details of a Phone Scam

First-person account of someone who fell for a scam, that started as a fake Amazon service rep and ended with a fake CIA agent, and lost $50,000 cash. And this is not a naive or stupid person. The details are fascinating. And if you think it couldn’t happen to you, think again. G … | Continue reading


@schneier.com | 9 months ago

Microsoft Is Spying on Users of Its AI Tools

Microsoft announced that it caught Chinese, Russian, and Iranian hackers using its AI tools—presumably coding tools—to improve their hacking abilities. From their report: In collaboration with OpenAI, we are sharing threat intelligence showing detected state affiliated adversarie … | Continue reading


@schneier.com | 9 months ago

EU Court of Human Rights Rejects Encryption Backdoors

The European Court of Human Rights has ruled that breaking end-to-end encryption by adding backdoors violates human rights: Seemingly most critically, the [Russian] government told the ECHR that any intrusion on private lives resulting from decrypting messages was “necessary” to … | Continue reading


@schneier.com | 9 months ago

Friday Squid Blogging: Vegan Squid-Ink Pasta

It uses black beans for color and seaweed for flavor. As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered. Read my blog posting guidelines here. | Continue reading


@schneier.com | 9 months ago

On the Insecurity of Software Bloat

Good essay on software bloat and the insecurities it causes. The world ships too much code, most of it by third parties, sometimes unintended, most of it uninspected. Because of this, there is a huge attack surface full of mediocre code. Efforts are ongoing to improve the quality … | Continue reading


@schneier.com | 9 months ago

Upcoming Speaking Engagements

This is a current list of where and when I am scheduled to speak: I’m speaking at the Munich Security Conference (MSC) 2024 in Munich, Germany, on Friday, February 16, 2024. I’m giving a keynote at a symposium on “AI and Trust” at Generative AI, Free Speech, & Public Discourse. T … | Continue reading


@schneier.com | 9 months ago

Improving the Cryptanalysis of Lattice-Based Public-Key Algorithms

The winner of the Best Paper Award at Crypto this year was a significant improvement to lattice-based cryptanalysis. This is important, because a bunch of NIST’s post-quantum options base their security on lattice problems. I worry about standardizing on post-quantum algorithms t … | Continue reading


@schneier.com | 9 months ago

A Hacker’s Mind is Out in Paperback

The paperback version of A Hacker’s Mind has just been published. It’s the same book, only a cheaper format. But—and this is the real reason I am posting this—Amazon has significantly discounted the hardcover to $15 to get rid of its stock. This is much cheaper than I am selling … | Continue reading


@schneier.com | 9 months ago

Molly White Reviews Blockchain Book

Molly White—of “Web3 is Going Just Great” fame—reviews Chris Dixon’s blockchain solutions book: Read Write Own: In fact, throughout the entire book, Dixon fails to identify a single blockchain project that has successfully provided a non-speculative service at any kind of scale. … | Continue reading


@schneier.com | 9 months ago

On Passkey Usability

Matt Burgess tries to only use passkeys. The results are mixed. | Continue reading


@schneier.com | 9 months ago

Friday Squid Blogging: A Penguin Named “Squid”

Amusing story about a penguin named “Squid.” As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered. Read my blog posting guidelines here. | Continue reading


@schneier.com | 9 months ago

No, Toothbrushes Were Not Used in a Massive DDoS Attack

The widely reported story last week that 1.5 million smart toothbrushes were hacked and used in a DDoS attack is false. Near as I can tell, a German reporter talking to someone at Fortinet got it wrong, and then everyone else ran with it without reading the German text. It was a … | Continue reading


@schneier.com | 9 months ago

On Software Liabilities

Over on Lawfare, Jim Dempsey published a really interesting proposal for software liability: “Standard for Software Liability: Focus on the Product for Liability, Focus on the Process for Safe Harbor.” Section 1 of this paper sets the stage by briefly describing the problem to be … | Continue reading


@schneier.com | 9 months ago

Teaching LLMs to Be Deceptive

Interesting research: “Sleeper Agents: Training Deceptive LLMs that Persist Through Safety Training“: Abstract: Humans are capable of strategically deceptive behavior: behaving helpfully in most situations, but then behaving very differently in order to pursue alternative objecti … | Continue reading


@schneier.com | 9 months ago

Deepfake Fraud

A deepfake video conference call—with everyone else on the call a fake—fooled a finance worker into sending $25M to the criminals’ account. | Continue reading


@schneier.com | 9 months ago

Friday Squid Blogging: Illex Squid in Argentina Waters

Argentina is reporting that there is a good population of illex squid in its waters ready for fishing, and is working to ensure that Chinese fishing boats don’t take it all. As usual, you can also use this squid post to talk about the security stories in the news that I haven’t c … | Continue reading


@schneier.com | 9 months ago

David Kahn

David Kahn has died. His groundbreaking book, The Codebreakers was the first serious book I read about codebreaking, and one of the primary reasons I entered this field. He will be missed. | Continue reading


@schneier.com | 9 months ago

A Self-Enforcing Protocol to Solve Gerrymandering

In 2009, I wrote: There are several ways two people can divide a piece of cake in half. One way is to find someone impartial to do it for them. This works, but it requires another person. Another way is for one person to divide the piece, and the other person to complain (to the … | Continue reading


@schneier.com | 9 months ago

Facebook’s Extensive Surveillance Network

Consumer Reports is reporting that Facebook has built a massive surveillance network: Using a panel of 709 volunteers who shared archives of their Facebook data, Consumer Reports found that a total of 186,892 companies sent data about them to the social network. On average, each … | Continue reading


@schneier.com | 9 months ago

CFPB’s Proposed Data Rules

In October, the Consumer Financial Protection Bureau (CFPB) proposed a set of rules that if implemented would transform how financial institutions handle personal data about their customers. The rules put control of that data back in the hands of ordinary Americans, while at the … | Continue reading


@schneier.com | 9 months ago

New Images of Colossus Released

GCHQ has released new images of the WWII Colossus code-breaking computer, celebrating the machine’s eightieth anniversary (birthday?). News article. | Continue reading


@schneier.com | 9 months ago

NSA Buying Bulk Surveillance Data on Americans without a Warrant

It finally admitted to buying bulk data on Americans from data brokers, in response to a query by Senator Weyden. This is almost certainly illegal, although the NSA maintains that it is legal until it’s told otherwise. Some news articles. | Continue reading


@schneier.com | 9 months ago

Microsoft Executives Hacked

Microsoft is reporting that a Russian intelligence agency—the same one responsible for SolarWinds—accessed the email system of the company’s executives. Beginning in late November 2023, the threat actor used a password spray attack to compromise a legacy non-production test tenan … | Continue reading


@schneier.com | 10 months ago

Friday Squid Blogging: Footage of Black-Eyed Squid Brooding Her Eggs

Amazing footage of a black-eyed squid (Gonatus onyx) carrying thousands of eggs. They tend to hang out about 6,200 feet below sea level. As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered. Read my blog posting guidelin … | Continue reading


@schneier.com | 10 months ago

Chatbots and Human Conversation

For most of history, communicating with a computer has not been like communicating with a person. In their earliest years, computers required carefully constructed instructions, delivered through punch cards; then came a command-line interface, followed by menus and options and t … | Continue reading


@schneier.com | 10 months ago

Quantum Computing Skeptics

Interesting article. I am also skeptical that we are going to see useful quantum computers anytime soon. Since at least 2019, I have been saying that this is hard. And that we don’t know if it’s “land a person on the surface of the moon” hard, or “land a person on the surface of … | Continue reading


@schneier.com | 10 months ago

Poisoning AI Models

New research into poisoning AI models: The researchers first trained the AI models using supervised learning and then used additional “safety training” methods, including more supervised learning, reinforcement learning, and adversarial training. After this, they checked if the A … | Continue reading


@schneier.com | 10 months ago

Side Channels Are Common

Really interesting research: “Lend Me Your Ear: Passive Remote Physical Side Channels on PCs.” Abstract: We show that built-in sensors in commodity PCs, such as microphones, inadvertently capture electromagnetic side-channel leakage from ongoing computation. Moreover, this inform … | Continue reading


@schneier.com | 10 months ago

AI Bots on X (Twitter)

You can find them by searching for OpenAI chatbot warning messages, like: “I’m sorry, I cannot provide a response as it goes against OpenAI’s use case policy.” I hadn’t thought about this before: identifying bots by searching for distinctive bot phrases. | Continue reading


@schneier.com | 10 months ago

Friday Squid Blogging: New Foods from Squid Fins

We only eat about half of a squid, ignoring the fins. A group of researchers is working to change that. As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered. Read my blog posting guidelines here. | Continue reading


@schneier.com | 10 months ago

Zelle Is Using My Name and Voice without My Consent

Okay, so this is weird. Zelle has been using my name, and my voice, in audio podcast ads—without my permission. At least, I think it is without my permission. It’s possible that I gave some sort of blanket permission when speaking at an event. It’s not likely, but it is possible. … | Continue reading


@schneier.com | 10 months ago

Speaking to the CIA’s Creative Writing Group

This is a fascinating story. Last spring, a friend of a friend visited my office and invited me to Langley to speak to Invisible Ink, the CIA’s creative writing group. I asked Vivian (not her real name) what she wanted me to talk about. She said that the topic of the talk was ent … | Continue reading


@schneier.com | 10 months ago

Canadian Citizen Gets Phone Back from Police

After 175 million failed password guesses, a judge rules that the Canadian police must return a suspect’s phone. [Judge] Carter said the investigation can continue without the phones, and he noted that Ottawa police have made a formal request to obtain more data from Google. “Thi … | Continue reading


@schneier.com | 10 months ago

Code Written with AI Assistants Is Less Secure

Interesting research: “Do Users Write More Insecure Code with AI Assistants?“: Abstract: We conduct the first large-scale user study examining how users interact with an AI Code assistant to solve a variety of security related tasks across different programming languages. Overall … | Continue reading


@schneier.com | 10 months ago

The Story of the Mirai Botnet

Over at Wired, Andy Greenberg has an excellent story about the creators of the 2016 Mirai botnet. | Continue reading


@schneier.com | 10 months ago

Voice Cloning with Very Short Samples

New research demonstrates voice cloning, in multiple languages, using samples ranging from one to twelve seconds. Research paper. | Continue reading


@schneier.com | 10 months ago

Upcoming Speaking Engagements

This is a current list of where and when I am scheduled to speak: I’m speaking at the International PolCampaigns Expo (IPE24) in Cape Town, South Africa, January 25-26, 2024. The list is maintained on this page. | Continue reading


@schneier.com | 10 months ago

Friday Squid Blogging: Giant Squid from Newfoundland in the 1800s

Interesting article, with photographs. As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered. Read my blog posting guidelines here. | Continue reading


@schneier.com | 10 months ago

On IoT Devices and Software Liability

New law journal article: Smart Device Manufacturer Liability and Redress for Third-Party Cyberattack Victims Abstract: Smart devices are used to facilitate cyberattacks against both their users and third parties. While users are generally able to seek redress following a cyberatt … | Continue reading


@schneier.com | 10 months ago

Pharmacies Giving Patient Records to Police without Warrants

Add pharmacies to the list of industries that are giving private data to the police without a warrant. | Continue reading


@schneier.com | 10 months ago

Facial Scanning by Burger King in Brazil

In 2000, I wrote: “If McDonald’s offered three free Big Macs for a DNA sample, there would be lines around the block.” Burger King in Brazil is almost there, offering discounts in exchange for a facial scan. From a marketing video: “At the end of the year, it’s Friday every day, … | Continue reading


@schneier.com | 10 months ago

PIN-Stealing Android Malware

This is an old piece of malware—the Chameleon Android banking Trojan—that now disables biometric authentication in order to steal the PIN: The second notable new feature is the ability to interrupt biometric operations on the device, like fingerprint and face unlock, by using the … | Continue reading


@schneier.com | 10 months ago

Second Interdisciplinary Workshop on Reimagining Democracy

Last month, I convened the Second Interdisciplinary Workshop on Reimagining Democracy (IWORD 2023) at the Harvard Kennedy School Ash Center. As with IWORD 2022, the goal was to bring together a diverse set of thinkers and practitioners to talk about how democracy might be reimagi … | Continue reading


@schneier.com | 10 months ago

Friday Squid Blogging—18th Anniversary Post: New Species of Pygmy Squid Discovered

They’re Ryukyuan pygmy squid (Idiosepius kijimuna) and Hannan’s pygmy squid (Kodama jujutsu). The second one represents an entire new genus. As usual, you can also use this squid post to talk about the security stories in the news that I haven’t covered. And, yes, this is the eig … | Continue reading


@schneier.com | 10 months ago