U.S. Department of Interior Grounding All Drones

The Department of Interior is grounding all non-emergency drones due to security concerns: The order comes amid a spate of warnings and bans at multiple government agencies, including the Department of Defense, about possible vulnerabilities in Chinese-made drone systems that could be allowing...

New SHA-1 Attack

There's a new, practical, collision attack against SHA-1: In this paper, we report the first practical implementation of this attack, and its impact on real-world security with a PGP/GnuPG impersonation attack. We managed to significantly reduce the complexity of collisions attack against SHA-1: ...

USB Cable Kill Switch for Laptops

BusKill is designed to wipe your laptop Linux only if it is snatched from you in a public place: The idea is to connect the BusKill cable to your Linux laptop on one end, and to your belt, on the other end. When someone yanks your laptop from your lap or table, the USB cable disconnects from the...

Andy Ellis on Risk Assessment

Andy Ellis, the CSO of Akamai, gave a great talk about the psychology of risk at the Business of Software conference this year. I've written about this before. One quote of mine: "The problem is our brains are intuitively suited to the sorts of risk management decisions endemic to living in small...

Bad Consumer Security Advice

There are lots of articles about there telling people how to better secure their computers and online accounts. While I agree with some of it, this article contains some particularly bad advice: 1. Never, ever, ever use public unsecured Wi-Fi such as the Wi-Fi in a café, hotel or airport. To...

Buying Used Voting Machines on eBay

This is not surprising: This year, I bought two more machines to see if security had improved. To my dismay, I discovered that the newer model machines -- those that were used in the 2016 election -- are running Windows CE and have USB ports, along with other components, that make them even easie...

Cell Phone Security and Heads of State

Earlier this week, the New York Times reported that the Russians and the Chinese were eavesdropping on President Donald Trump's personal cell phone and using the information gleaned to better influence his behavior. This should surprise no one. Security experts have been talking about the potenti...

Secure Speculative Execution

We're starting to see research into designing speculative execution systems that avoid Spectre- and Meltdown-like security problems. Here's one. I don't know if this particular design secure. My guess is that we're going to see several iterations of design and attack before we settle on something...

Perverse Vulnerability from Interaction between 2-Factor Authentication and iOS AutoFill

Apple is rolling out an iOS security usability feature called Security code AutoFill. The basic idea is that the OS scans incoming SMS messages for security codes and suggests them in AutoFill, so that people can use them without having to memorize or type them. Sounds like a really good idea, bu...

COPPA Compliance

Interesting research: "'Won't Somebody Think of the Children?' Examining COPPA Compliance at Scale": Abstract: We present a scalable dynamic analysis framework that allows for the automatic evaluation of the privacy behaviors of Android apps. We use our system to analyze mobile apps' compliance...

Facial Recognition Is Coming to Retail

Summary article...

Cybersecurity and the 2017 US National Security Strategy

Commentaries on the 2017 US national security strategy by Michael Sulmeyer and Ben Buchanan...

Security Vulnerabilities in Star Wars

A fun video describing some of the many Empire security vulnerabilities in the first Star Wars movie. Happy New Year, everyone...

Apple FaceID Hacked

It only took a week: On Friday, Vietnamese security firm Bkav released a blog post and video showing that -- by all appearances -- they'd cracked FaceID with a composite mask of 3-D-printed plastic, silicone, makeup, and simple paper cutouts, which in combination tricked an iPhone X into unlockin...

CSE Releases Malware Analysis Tool

The Communications Security Establishment of Canada -- basically, Canada's version of the NSA -- has released a suite of malware analysis tools: Assemblyline is described by CSE as akin to a conveyor belt: files go in, and a handful of small helper applications automatically comb through each one...

On the Equifax Data Breach

Last Thursday, Equifax reported a data breach that affects 143 million US customers, about 44% of the population. It's an extremely serious breach; hackers got access to full names, Social Security numbers, birth dates, addresses, driver's license numbers -- exactly the sort of information...

Hacking a Gene Sequencer by Encoding Malware in a DNA Strand

One of the common ways to hack a computer is to mess with its input data. That is, if you can feed the computer data that it interprets -- or misinterprets -- in a particular way, you can trick the computer into doing things that it wasn't intended to do. This is basically what a buffer overflow...

Splitting the NSA and US Cyber Command

Rumor is that the Trump administration will separate the NSA and US Cyber Command. I have long thought this was a good idea. Here's a good discussion of what it does and doesn't mean...

NSA Abandons "About" Searches

Earlier this month, the NSA said that it would no longer conduct "about" searches of bulk communications data. This was the practice of collecting the communications of Americans based on keywords and phrases in the contents of the messages, not based on who they were from or to. The NSA's own...

What’s the Scam?

To subscribe to my monthly email newsletter, you have to enter your information on the webpage, and then reply to an automatically generated email. This is, of course, to prevent people from subscribing addresses other than their own. Starting last weekend, I have been receiving a lot of individu...

Upcoming Speaking Engagements

This is a current list of where and when I am scheduled to speak: I’m giving a keynote at Cybernation 2026 in Berlin, Germany, on June 24, 2026. I’m speaking at the Potsdam Conference on National Cybersecurity at the Hasso Plattner Institut in Potsdam, Germany. The event runs June 24–25, 2026, an...

Another Chrome Vulnerability

Google has patched another Chrome zero-day: On Thursday, Google said an anonymous source notified it of the vulnerability. The vulnerability carries a severity rating of 8.8 out of 10. In response, Google said, it would be releasing versions 124.0.6367.201/.202 for macOS and Windows and...

More Military Cryptanalytics, Part III

Late last year, the NSA declassified and released a redacted version of Lambros D. Callimahoss Military Cryptanalytics, Part III. We just got most of the index. Its hard to believe that there are any real secrets left in this 44-year-old volume...

Vulnerabilities in Weapons Systems

"If you think any of these systems are going to work as expected in wartime, youre fooling yourself." That was Bruces response at a conference hosted by US Transportation Command in 2017, after learning that their computerized logistical systems were mostly unclassified and on the Internet. That...

New Disk Wiping Malware Targets Israel

Apostle seems to be a new strain of malware that destroys data. In a post published Tuesday, SentinelOne researchers said they assessed with high confidence that based on the code and the servers Apostle reported to, the malware was being used by a newly discovered group with ties to the Iranian...

Apple Censorship and Surveillance in China

Good investigative reporting on how Apple is participating in and assisting with Chinese censorship and surveillance...

Ransomware Shuts Down US Pipeline

This is a major story: a probably Russian cybercrime group called DarkSide shut down the Colonial Pipeline in a ransomware attack. The pipeline supplies much of the East Coast. This is the new and improved ransomware attack: the hackers stole nearly 100 gig of data, and are threatening to publish...

On Not Fixing Old Vulnerabilities

How is this even possible? …26% of companies Positive Technologies tested were vulnerable to WannaCry, which was a threat years ago, and some even vulnerable to Heartbleed. "The most frequent vulnerabilities detected during automated assessment date back to 2013-­2017, which indicates a lack of...

Manipulating Systems Using Remote Lasers

Many systems are vulnerable: Researchers at the time said that they were able to launch inaudible commands by shining lasers -- from as far as 360 feet -- at the microphones on various popular voice assistants, including Amazon Alexa, Apple Siri, Facebook Portal, and Google Assistant. … They...

Check Washing

I cant believe that check washing is still a thing: "Check washing" is a practice where thieves break into mailboxes or otherwise steal mail, find envelopes with checks, then use special solvents to remove the information on that check except for the signature and then change the payee and the...

Indistinguishability Obfuscation

Quanta magazine recently published a breathless article on indistinguishability obfuscation -- calling it the "crown jewel of cryptography" -- and saying that it had finally been achieved, based on a recently published paper. I want to add some caveats to the discussion. Basically, obfuscation...

“Privacy Nutrition Labels” in Apple’s App Store

Apple will start requiring standardized privacy labels for apps in its app store, starting in December: Apple allows data disclosure to be optional if all of the following conditions apply: if its not used for tracking, advertising or marketing; if its not shared with a data broker; if collection...

On Executive Order 12333

Mark Jaycox has written a long article on the US Executive Order 12333: "No Oversight, No Limits, No Worries: A Primer on Presidential Spying and Executive Order 12,333": Abstract: Executive Order 12,333 "EO 12333" is a 1980s Executive Order signed by President Ronald Reagan that, among other...

The Third Edition of Ross Anderson’s Security Engineering

Ross Andersons fantastic textbook, Security Engineering, will have a third edition. The book wont be published until December, but Ross has been making drafts of the chapters available online as he finishes them. Now that the book is completed, I expect the publisher to make him take the drafts o...

Friday Squid Blogging: Morning Squid

Asa ika means "morning squid" in Japanese. 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...

Copying a Key by Listening to It in Action

Researchers are using recordings of keys being used in locks to create copies. Once they have a key-insertion audio file, SpiKey's inference software gets to work filtering the signal to reveal the strong, metallic clicks as key ridges hit the lock's pins and you can hear those filtered clicks...

Attack Against PC Thunderbolt Port

The attack requires physical access to the computer, but it's pretty devastating: On Thunderbolt-enabled Windows or Linux PCs manufactured before 2019, his technique can bypass the login screen of a sleeping or locked computer -- and even its hard disk encryption -- to gain full access to the...

The Whisper Secret-Sharing App Exposed Locations

This is a big deal: Whisper, the secret-sharing app that called itself the "safest place on the Internet," left years of users' most intimate confessions exposed on the Web tied to their age, location and other details, raising alarm among cybersecurity researchers that users could have been...

Newly Declassified Study Demonstrates Uselessness of NSA's Phone Metadata Program

The New York Times is reporting on the NSA's phone metadata program, which the NSA shut down last year: A National Security Agency system that analyzed logs of Americans' domestic phone calls and text messages cost $100 million from 2015 to 2019, but yielded only a single significant investigatio...

SIM Hijacking

SIM hijacking -- or SIM swapping -- is an attack where a fraudster contacts your cell phone provider and convinces them to switch your account to a phone that they control. Since your smartphone often serves as a security measure or backup verification system, this allows the fraudster to take ov...

Artificial Personas and Public Discourse

Presidential campaign season is officially, officially, upon us now, which means it's time to confront the weird and insidious ways in which technology is warping politics. One of the biggest threats on the horizon: artificial personas are coming, and they're poised to take over political debate...

GPS Manipulation

Long article on the manipulation of GPS in Shanghai. It seems not to be some Chinese military program, but ships who are stealing sand. The Shanghai "crop circles," which somehow spoof each vessel to a different false location, are something new. "I'm still puzzled by this," says Humphreys. "I...

Facebook Plans on Backdooring WhatsApp

This article points out that Facebook's planned content moderation scheme will result in an encryption backdoor into WhatsApp: In Facebook's vision, the actual end-to-end encryption client itself such as WhatsApp will include embedded content moderation and blacklist filtering algorithms. These...

On Security Tokens

Mark Risher of Google extols the virtues of security keys: I'll say it again for the people in the back: with Security Keys, instead of the user needing to verify the site, the site has to prove itself to the key. Good security these days is about human factors; we have to take the onus off of th...

Ghidra: NSA's Reverse-Engineering Tool

Last month, the NSA released Ghidra, a software reverse-engineering tool. Early reactions are uniformly positive. Three news articles...

Three-Rotor Enigma Machine Up for Auction Today

Sotheby's is auctioning off a working, I think three-rotor Enigma machine today. They're expecting it to sell for about $200K. I have an Enigma, but it's missing the rotors...

Consumer Reports Reviews Wireless Home-Security Cameras

Consumer Reports is starting to evaluate the security of IoT devices. As part of that, it's reviewing wireless home-security cameras. It found significant security vulnerabilities in D-Link cameras: In contrast, D-Link doesn't store video from the DCS-2630L in the cloud. Instead, the camera has i...

Security Vulnerability in Internet-Connected Construction Cranes

This seems bad: The F25 software was found to contain a capture replay vulnerability -- basically an attacker would be able to eavesdrop on radio transmissions between the crane and the controller, and then send their own spoofed commands over the air to seize control of the crane. "These devices...

Helen Nissenbaum on Data Privacy and Consent

This is a fantastic Q with Cornell Tech Professor Helen Nissenbaum on data privacy and why it's wrong to focus on consent. I'm not going to pull a quote, because you should read the whole thing...

Sending Inaudible Commands to Voice Assistants

Researchers have demonstrated the ability to send inaudible commands to voice assistants like Alexa, Siri, and Google Assistant. Over the last two years, researchers in China and the United States have begun demonstrating that they can send hidden commands that are undetectable to the human ear t...