AI Worm

Researchers have prototyped an AI-powered internet worm. The coolest thing about the prototype is that it carries its own LLM with it, and runs it on computers that have been broken into. This is the closest to John Brunner's original 1975 conception of a computer worm that I've seen...

On AI Security

Good report: Executive Summary: Let's say you wanted to make sure that your AI is secure. Can you just maximize the security and privacy benchmark and call it a day? Nope, because benchmarks don't actually work for measuring AI capabilities even when they are NOT emergent systemic properties like...

Copy.Fail Linux Vulnerability

This is the worst Linux vulnerability in years. TL;DR copy.fail is a Linux kernel local privilege escalation, not a browser or clipboard attack. Disclosed by Theori on 29 April 2026 with a working PoC. It abuses the kernel crypto API AFALG sockets plus splice to write four bytes at a time straigh...

LLMs and Text-in-Text Steganography

Turns out that LLMs are really good at hiding text messages in other text messages...

DarkSword Malware

DarkSword is a sophisticated piece of malware--probably government designed--that targets iOS. Google Threat Intelligence Group GTIG has identified a new iOS full-chain exploit that leveraged multiple zero-day vulnerabilities to fully compromise devices. Based on toolmarks in recovered payloads, ...

Is “Hackback” Official US Cybersecurity Strategy?

The 2026 US "Cyber Strategy for America" document is mostly the same thing we've seen out of the White House for over a decade, but with a more aggressive tone. But one sentence stood out: "We will unleash the private sector by creating incentives to identify and disrupt adversary networks and...

AI Found Twelve New Vulnerabilities in OpenSSL

The title of the post is"What AI Security Research Looks Like When It Works," and I agree: In the latest OpenSSL security release on January 27, 2026, twelve new zero-day vulnerabilities meaning unknown to the maintainers at time of disclosure were announced. Our AI system is responsible for the...

Google’s Advanced Protection Now on Android

Google has extended its Advanced Protection features to Android devices. It's not for everybody, but something to be considered by high-risk users. Wired article, behind a paywall...

CVE Program Almost Unfunded

Mitre's CVE's program--which provides common naming and other informational resources about cybersecurity vulnerabilities--was about to be cancelled, as the US Department of Homeland Security failed to renew the contact. It was funded for eleven more months at the last minute. This is a big deal...

Rational Astrologies and Security

John Kelsey and I wrote a short paper for the Rossfest Festschrift: "Rational Astrologies and Security": There is another non-security way that designers can spend their security budget: on making their own lives easier. Many of these fall into the category of what has been called rational...

UK Is Ordering Apple to Break Its Own Encryption

The Washington Post is reporting that the UK government has served Apple with a "technical capability notice" as defined by the 2016 Investigatory Powers Act, requiring it to break the Advanced Data Protection encryption in iCloud for the benefit of law enforcement. This is a big deal, and...

AI and the 2024 Elections

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...

The State of Ransomware

Palo Alto Networks published its semi-annual report on ransomware. From the Executive Summary: Unit 42 monitors ransomware and extortion leak sites closely to keep tabs on threat activity. We reviewed compromise announcements from 53 dedicated leak sites in the first half of 2024 and found 1,762...

Demo of AES GCM Misuse Problems

This is really neat demo of the security problems arising from reusing nonces with a symmetric cipher in GCM mode...

Security and Human Behavior (SHB) 2024

This week, I hosted the seventeenth Workshop on Security and Human Behavior at the Harvard Kennedy School. This is the first workshop since our co-founder, Ross Anderson, died unexpectedly. SHB is a small, annual, invitational workshop of people studying various aspects of the human side of...

Zero-Trust DNS

Microsoft is working on a promising-looking protocol to lock down DNS. ZTDNS aims to solve this decades-old problem by integrating the Windows DNS engine with the Windows Filtering Platform--the core component of the Windows Firewall--directly into client devices. Jake Williams, VP of research an...

Upcoming Speaking Engagements

This is a current list of where and when I am scheduled to speak: Im giving a webinar via Zoom on Wednesday, May 22, at 11:00 AM ET. The topic is "Should the USG Establish a Publicly Funded AI Option?" The list is maintained on this page...

New Attack Against Self-Driving Car AI

This is another attack that convinces the AI to ignore road signs: Due to the way CMOS cameras operate, rapidly changing light from fast flashing diodes can be used to vary the color. For example, the shade of red on a stop sign could look different on each line depending on the time between the...

Upcoming Speaking Engagements

This is a current list of where and when I am scheduled to speak: Im speaking twice at RSA Conference 2024 in San Francisco. Ill be on a panel on software liability on May 6, 2024 at 8:30 AM, and Im giving a keynote on AI and democracy on May 7, 2024 at 2:25 PM. The list is maintained on this pag...

US Cyber Safety Review Board on the 2023 Microsoft Exchange Hack

The US Cyber Safety Review Board released a report on the summer 2023 hack of Microsoft Exchange by China. It was a serious attack by the Chinese government that accessed the emails of senior US government officials. From the executive summary: The Board finds that this intrusion was preventable...

Surveillance through Push Notifications

The Washington Post is reporting on the FBIs increasing use of push notification data--"push tokens"--to identify people. The police can request this data from companies like Apple and Google without a warrant. The investigative technique goes back years. Court orders that were issued in 2019 to...

NIST Cybersecurity Framework 2.0

NIST has released version 2.0 of the Cybersecurity Framework: The CSF 2.0, which supports implementation of the National Cybersecurity Strategy, has an expanded scope that goes beyond protecting critical infrastructure, such as hospitals and power plants, to all organizations in any sector. It al...

China Surveillance Company Hacked

Last week, someone posted something like 570 files, images and chat logs from a Chinese company called I-Soon. I-Soon sells hacking and espionage services to Chinese national and local government. Lots of details in the news articles. These arent details about the tools or techniques, more the...

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 adversaries--tracked as...

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 text boxes. If you...

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...

TikTok Editorial Analysis

TikTok seems to be skewing things in the interests of the Chinese Communist Party. This is a serious analysis, and the methodology looks sound. Conclusion: Substantial Differences in Hashtag Ratios Raise Concerns about TikToks Impartiality Given the research above, we assess a strong possibility...

Spyware in India

Apple has warned leaders of the opposition government in India that their phones are being spied on: Multiple top leaders of India’s opposition parties and several journalists have received a notification from Apple, saying that "Apple believes you are being targeted by state-sponsored attackers...

The Future of Drone Warfare

Ukraine is using $400 drones to destroy tanks: Facing an enemy with superior numbers of troops and armor, the Ukrainian defenders are holding on with the help of tiny drones flown by operators like Firsov that, for a few hundred dollars, can deliver an explosive charge capable of destroying a...

Friday Squid Blogging: Glass Squid Video

Heres a fantastic video of Taonius Borealis, a glass squid, from NOAA. 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...

Fooling an AI Article Writer

World of Warcraft players wrote about a fictional game element, "Glorbo," on a subreddit for the game, trying to entice an AI bot to write an article about it. It worked: And it…worked. Zleague auto-published a post titled "World of Warcraft Players Excited For Glorbo’s Introduction." … That is…a...

Privacy of Printing Services

The Washington Post has an article about popular printing services, and whether or not they read your documents and mine the data when you use them for printing: Ideally, printing services should avoid storing the content of your files, or at least delete daily. Print services should also...

Belgian Tax Hack

Heres a fascinating tax hack from Belgium listen to the details here, episode 484 of "No Such Thing as a Fish," at 28:00. Basically, its about a music festival on the border between Belgium and Holland. The stage was in Holland, but the crowd was in Belgium. When the copyright collector came...

Ethical Problems in Computer Security

Tadayoshi Kohno, Yasemin Acar, and Wulf Loh wrote excellent paper on ethical thinking within the computer security community: "Ethical Frameworks and Computer Security Trolley Problems: Foundations for Conversation": Abstract: The computer security research community regularly tackles ethical...

Security Risks of AI

Stanford and Georgetown have a new report on the security risks of AI--particularly adversarial machine learning--based on a workshop they held on the topic. Jim Dempsey, one of the workshop organizers, wrote a blog post on the report: As a first step, our report recommends the inclusion of AI...

Upcoming Speaking Engagements

This is a current list of where and when I am scheduled to speak: I’m speaking on “Cybersecurity Thinking to Reinvent Democracy” at RSA Conference 2023 in San Francisco, California, on Tuesday, April 25, 2023, at 9:40 AM PT. I’m speaking at IT-S Now 2023 in Vienna, Austria, on June 2, 2023 at 8:3...

Hacking Suicide

Heres a religious hack: You want to commit suicide, but its a mortal sin: your soul goes straight to hell, forever. So what you do is murder someone. That will get you executed, but if you confess your sins to a priest beforehand you avoid hell. Problem solved. This was actually a problem in the...

FBI Advising People to Avoid Public Charging Stations

The FBI is warning people against using public phone-charging stations, worrying that the combination power-data port can be used to inject malware onto the devices: Avoid using free charging stations in airports, hotels, or shopping centers. Bad actors have figured out ways to use public USB por...

UK Runs Fake DDoS-for-Hire Sites

Brian Krebs is reporting that the UKs National Crime Agency is setting up fake DDoS-for-hire sites as part of a sting operation: The NCA says all of its fake so-called "booter" or "stresser" sites -­ which have so far been accessed by several thousand people--have been created to look like they...

Mass Ransomware Attack

A vulnerability in a popular data transfer tool has resulted in a mass ransomware attack: TechCrunch has learned of dozens of organizations that used the affected GoAnywhere file transfer software at the time of the ransomware attack, suggesting more victims are likely to come forward. However,...

Hacked Cellebrite and MSAB Software Released

Cellebrite is an cyberweapons arms manufacturer that sells smartphone forensic software to governments around the world. MSAB is a Swedish company that does the same thing. Someone has released software and documentation from both companies...

Threats of Machine-Generated Text

With the release of ChatGPT, Ive read many random articles about this or that threat from the technology. This paper is a good survey of the field: what the threats are, how we might detect machine-generated text, directions for future research. Its a solid grounding amongst all of the hype...

Existential Risk and the Fermi Paradox

We know that complexity is the worst enemy of security, because it makes attack easier and defense harder. This becomes catastrophic as the effects of that attack become greater. In A Hackers Mind coming in February 2023, I write: Our societal systems, in general, may have grown fairer and more...

Sirius XM Software Vulnerability

This is new: Newly revealed research shows that a number of major car brands, including Honda, Nissan, Infiniti, and Acura, were affected by a previously undisclosed security bug that would have allowed a savvy hacker to hijack vehicles and steal user data. According to researchers, the bug was i...

Hacking Automobile Keyless Entry Systems

Suspected members of a European car-theft ring have been arrested: The criminals targeted vehicles with keyless entry and start systems, exploiting the technology to get into the car and drive away. As a result of a coordinated action carried out on 10 October in the three countries involved, 31...

Spyware Maker Intellexa Sued by Journalist

The Greek journalist Thanasis Koukakis was spied on by his own government, with a commercial spyware product called "Predator." That product is sold by a company in North Macedonia called Cytrox, which is in turn owned by an Israeli company called Intellexa. Koukakis is suing Intellexa. The lawsu...

Friday Squid Blogging: Another Giant Squid Washes Up on New Zealand Beach

This one has chewed-up tentacles. Note that this is a different squid than the one that recently washed up on a South African beach. As usual, you can also use this squid post to talk about the security stories in the news that I havent covered. Read my blog posting guidelines here...

Weird Fallout from Peiter Zatko’s Twitter Whistleblowing

People are trying to dig up dirt on Peiter Zatko, better known as Mudge. For the record, I have not been contacted. Im not sure if I should feel slighted...

NSO Group’s Pegasus Spyware Used against Thailand Pro-Democracy Activists and Leaders

Yet another basic human rights violation, courtesy of NSO Group: Citizen Lab has the details: Key Findings We discovered an extensive espionage campaign targeting Thai pro-democracy protesters, and activists calling for reforms to the monarchy. We forensically confirmed that at least 30 individua...

Facebook Is Now Encrypting Links to Prevent URL Stripping

Some sites, including Facebook, add parameters to the web address for tracking purposes. These parameters have no functionality that is relevant to the user, but sites rely on them to track users across pages and properties. Mozilla introduced support for URL stripping in Firefox 102, which it...