US Postal Service Files Blockchain Voting Patent

The US Postal Service has filed a patent on a blockchain voting method: Abstract: A voting system can use the security of blockchain and the mail to provide a reliable voting system. A registered voter receives a computer readable code in the mail and confirms identity and confirms correct ballot...

Collecting and Selling Mobile Phone Location Data

The Wall Street Journal has an article about a company called Anomaly Six LLC that has an SDK that's used by "more than 500 mobile applications." Through that SDK, the company collects location data from users, which it then sells. Anomaly Six is a federal contractor that provides...

Theft of CIA's "Vault Seven" Hacking Tools Due to Its Own Lousy Security

The Washington Post is reporting on an internal CIA report about its "Vault 7" security breach: The breach -- allegedly committed by a CIA employee -- was discovered a year after it happened, when the information was published by WikiLeaks, in March 2017. The anti-secrecy group dubbed the release...

Examining the US Cyber Budget

Jason Healey takes a detailed look at the US federal cybersecurity budget and reaches an important conclusion: the US keeps saying that we need to prioritize defense, but in fact we prioritize attack. To its credit, this budget does reveal an overall growth in cybersecurity funding of about 5...

Security Analysis of the Democracy Live Online Voting System

New research: "Security Analysis of the Democracy Live Online Voting System": Abstract: Democracy Live's OmniBallot platform is a web-based system for blank ballot delivery, ballot marking, and optionally online voting. Three states -- Delaware, West Virginia, and New Jersey -- recently announced...

Gene Spafford on Internet Voting

Good interview...

California Needlessly Reduces Privacy During COVID-19 Pandemic

This one isn't even related to contact tracing: On March 17, 2020, the federal government relaxed a number of telehealth-related regulatory requirements due to COVID-19. On April 3, 2020, California Governor Gavin Newsom issued Executive Order N-43-20 the Order, which relaxes various telehealth...

Upcoming Speaking Engagements

This is a current list of where and when I am scheduled to speak: I'm being interviewed on "Hacking in the Public Interest" as part of the Black Hat Webcast Series, on Thursday, April 16, 2020 at 2:00 PM EDT. The list is maintained on this page...

The DoJ's Secret Legal Arguments to Break Cryptography

Earlier this year, the US Department of Justice made a series of legal arguments as to why Facebook should be forced to help the government wiretap Facebook Messenger. Those arguments are still sealed. The ACLU is suing to make them public...

John Mueller and Mark Stewart on the Risks of Terrorism

Another excellent paper by the Mueller/Stewart team: "Terrorism and Bathtubs: Comparing and Assessing the Risks": Abstract: The likelihood that anyone outside a war zone will be killed by an Islamist extremist terrorist is extremely small. In the United States, for example, some six people have...

Department of Commerce Report on the Botnet Threat

Last month, the US Department of Commerce released a report on the threat of botnets and what to do about it. I note that it explicitly said that the IoT makes the threat worse, and that the solutions are largely economic. The Departments determined that the opportunities and challenges in workin...

NIST Issues Call for "Lightweight Cryptography" Algorithms

This is interesting: Creating these defenses is the goal of NIST's lightweight cryptography initiative, which aims to develop cryptographic algorithm standards that can work within the confines of a simple electronic device. Many of the sensors, actuators and other micromachines that will functio...

Signed Malware

Stuxnet famously used legitimate digital certificates to sign its malware. A research paper from last year found that the practice is much more common than previously thought. Now, researchers have presented proof that digitally signed malware is much more common than previously believed. What's...

IoT Cybersecurity: What's Plan B?

In August, four US Senators introduced a bill designed to improve Internet of Things IoT security. The IoT Cybersecurity Improvement Act of 2017 is a modest piece of legislation. It doesn't regulate the IoT market. It doesn't single out any industries for particular attention, or force any...

Websites Grabbing User-Form Data Before It's Submitted

Websites are sending information prematurely: ...we discovered NaviStone's code on sites run by Acurian, Quicken Loans, a continuing education center, a clothing store for plus-sized women, and a host of other retailers. Using Javascript, those sites were transmitting information from people as...

CIA Exploits Against Wireless Routers

WikiLeaks has published CherryBlossom, the CIA's program to hack into wireless routers. The program is about a decade old. Four good news articles. Five. And a list of vulnerable routers...

Friday Squid Blogging: Squid Communications

In the oval squid Sepioteuthis lessoniana, males use body patterns to communicate with both females and other males: To gain insight into the visual communication associated with each behavior in terms of the body patterning's key components, the co-expression frequencies of two or more component...

Forging Voice

LyreBird is a system that can accurately reproduce the voice of someone, given a large amount of sample inputs. It's pretty good -- listen to the demo here -- and will only get better over time. The applications for recorded-voice forgeries are obvious, but I think the larger security risk will b...

How Technology Empowers—and Imperils—Dictators

This essay was written with Seva Gunitsky, and originally appeared inForeign Affairs. Two weeks after Moscow's full-scale invasion of Ukraine in March 2022, the Russian TV Channel One editor Marina Ovsyannikova burst onto the set of the evening newscast. She held up a hand-drawn sign behind the...

Using AI for Weapons Development

Last week, Anthropic released a long and detailed document describing current misuses of their Claude models. I'm still reading it, but I wanted to flag this: We identified a cell of threat actors based in northern Yemen running three weapons development programs: a guided rocket that used a...

Black Hat State of Security Vendors

Andy Ellis has a roundup of the security vendors at Black Hat this year. Key Takeaways: We have entered into an AI world. While nearly half of booths didn't directly mention AI or agents in their taglines, the effects of AI are everywhere. Multiple spaces Identity, SaaS, AppSec, Data have almost...

Cybersecurity Mission Creep in the US

Interesting paper: "Cybersecurity Mission Creep." Abstract: Cybersecurity is experiencing mission creep. Policymakers are casting more and more problems as issues of cybersecurity. So reframed, wildly different policy issues, from misinformation, to child social media safety laws, to antitrust...

The Realities of AI Video Surveillance

The Financial Times has a good article on how AI is changing the capabilities of video surveillance, with information from both Israel/Iran and Russia. I wrote about this sort of thing a few years ago, how AI enables mass spying in the way that computers and networks enabled mass surveillance. Th...

Microsoft Threatening Security Researcher

An anonymous security researcher called "Nightmare Eclipse" has been publishing a series of significant security exploits against Microsoft Windows--including one that breaks BitLocker. Microsoft has threatened legal action against the researcher. Lots of recriminations are being traded back and...

FBI’s 2025 Internet Crime Report

The 2025 Internet Crime Report was published a few weeks ago, but I only just saw it. Lots of interesting statistics. Press release. News articles...

Bypassing On-Camera Age-Verification Checks

Some AI-based video age-verification checks can be fooled with a fake mustache...

How Dangerous Is Anthropic’s Mythos AI?

Last month, Anthropic made a remarkable announcement about its new model, Claude Mythos Preview: it was so good at finding security vulnerabilities in software that the company would not release it to the general public. Instead, it would only be available to a select group of companies to scan a...

LLMs and Text-in-Text Steganography

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

Hiding Bluetooth Trackers in Mail

It was used to track a Dutch naval ship: Dutch journalist Just Vervaart, working for regional media network Omroep Gelderland, followed the directions posted on the Dutch government website and mailed a postcard with a hidden tracker inside. Because of this, they were able to track the ship for...

Upcoming Speaking Engagements

This is a current list of where and when I am scheduled to speak: I’m giving the Ross Anderson Lecture at the University of Cambridge’s Churchill College at 5:30 PM GMT on Thursday, March 19, 2026. I’m speaking at RSAC 2026 in San Francisco, California, USA, on Wednesday, March 25, 2026. I’m part...

Israel Hacked Traffic Cameras in Iran

Multiple news outlets are reporting on Israel's hacking of Iranian traffic cameras and how they assisted with the killing of that country's leadership. The New York Times has an article on the intelligence operation more generally...

Against the Federal Moratorium on State-Level Regulation of AI

Cast your mind back to May of this year: Congress was in the throes of debate over the massive budget bill. Amidst the many seismic provisions, Senator Ted Cruz dropped a ticking time bomb of tech policy: a ten-year moratorium on the ability of states to regulate artificial intelligence. To many,...

The NSA’s “Fifty Years of Mathematical Cryptanalysis (1937–1987)”

In response to a FOIA request, the NSA released "Fifty Years of Mathematical Cryptanalysis 1937-1987," by Glenn F. Stahly, with a lot of redactions. Weirdly, this is the second time the NSA has declassified the document. John Young got a copy in 2019. This one has a few less redactions. And nothi...

New VPN Backdoor

A newly discovered VPN backdoor uses some interesting tactics to avoid detection: When threat actors use backdoor malware to gain access to a network, they want to make sure all their hard work can't be leveraged by competing groups or detected by defenders. One countermeasure is to equip the...

Secret Service Tracking People’s Locations without Warrant

This feels important: The Secret Service has used a technology called Locate X which uses location data harvested from ordinary apps installed on phones. Because users agreed to an opaque terms of service page, the Secret Service believes it doesn't need a warrant...

Using LLMs to Exploit Vulnerabilities

Interesting research: "Teams of LLM Agents can Exploit Zero-Day Vulnerabilities." Abstract: LLM agents have become increasingly sophisticated, especially in the realm of cybersecurity. Researchers have shown that LLM agents can exploit real-world vulnerabilities when given a description of the...

New Lattice Cryptanalytic Technique

A new paper presents a polynomial-time quantum algorithm for solving certain hard lattice problems. This could be a big deal for post-quantum cryptographic algorithms, since many of them base their security on hard lattice problems. A few things to note. One, this paper has not yet been peer...

Surveillance by the New Microsoft Outlook App

The ProtonMail people are accusing Microsofts new Outlook for Windows app of conducting extensive surveillance on its users. It shares data with advertisers, a lot of data: The window informs users that Microsoft and those 801 third parties use their data for a number of purposes, including to:...

AI and Trust

Watch the Video on YouTube.com A 15-minute talk by Bruce Schneier...

Licensing AI Engineers

The debate over professionalizing software engineers is decades old. The basic idea is that, like lawyers and architects, there should be some professional licensing requirement for software engineers. Heres a law journal article recommending the same idea for AI engineers. This Article proposes...

A Taxonomy of Prompt Injection Attacks

Researchers ran a global prompt hacking competition, and have documented the results in a paper that both gives a lot of good examples and tries to organize a taxonomy of effective prompt injection strategies. It seems as if the most common successful strategy is the "compound instruction attack,...

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. Its possible that I gave some sort of blanket permission when speaking at an event. Its not likely, but it is possible. I wrote to Zelle...

AI Is Scarily Good at Guessing the Location of Random Photos

Wow: To test PIGEONs performance, I gave it five personal photos from a trip I took across America years ago, none of which have been published online. Some photos were snapped in cities, but a few were taken in places nowhere near roads or other easily recognizable landmarks. That didnt seem to...

LitterDrifter USB Worm

A new worm that spreads via USB sticks is infecting computers in Ukraine and beyond. The group­--known by many names, including Gamaredon, Primitive Bear, ACTINIUM, Armageddon, and Shuckworm--has been active since at least 2014 and has been attributed to Russia’s Federal Security Service by the...

Online Retail Hack

Selling miniature replicas to unsuspecting shoppers: Online marketplaces sell tiny pink cowboy hats. They also sell miniature pencil sharpeners, palm-size kitchen utensils, scaled-down books and camping chairs so small they evoke the Stonehenge scene in "This Is Spinal Tap." Many of the minuscule...

Decoupling for Security

This is an excerpt from a longer paper. You can read the whole thing complete with sidebars and illustrations here. Our message is simple: it is possible to get the best of both worlds. We can and should get the benefits of the cloud while taking security back into our own hands. Here we outline ...

Former Uber CISO Appealing His Conviction

Joe Sullivan, Ubers CEO during their 2016 data breach, is appealing his conviction. Prosecutors charged Sullivan, whom Uber hired as CISO after the 2014 breach, of withholding information about the 2016 incident from the FTC even as its investigators were scrutinizing the companys data security a...

Hacking the High School Grading System

Interesting New York Times article about high-school students hacking the grading system. Whats not helping? The policies many school districts are adopting that make it nearly impossible for low-performing students to fail--they have a grading floor under them, they know it, and that allows them...

Deepfake Election Interference in Slovakia

Well designed and well timed deepfake or two Slovakian politicians discussing how to rig the election: Šimečka and Denník N immediately denounced the audio as fake. The fact-checking department of news agency AFP said the audio showed signs of being manipulated using AI. But the recording was...

Friday Squid Blogging: “Mediterranean Beef Squid” Hoax

The viral video of the "Mediterranean beef squid"is a hoax. Its not even a deep fake; its a plastic toy. 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...