Criminals are Now Exploiting SS7 Flaws to Hack Smartphone Two-Factor Authentication Systems

I've previously written about the serious vulnerabilities in the SS7 phone routing system. Basically, the system doesn't authenticate messages. Now, criminals are using it to hack smartphone-based two-factor authentication systems: In short, the issue with SS7 is that the network believes whateve...

The FCC Wants to Eliminate Burner Phones

A proposed FCC rule would kill burner phones: phones whose accounts are not attached to a particular person. The FCC plans to do this by legally forcing the country's telecoms to store a wealth of personal information about essentially all phone customers, including a government issued...

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...

New Chrome Zero-Day

According to Microsoft researchers, North Korean hackers have been using a Chrome zero-day exploit to steal cryptocurrency...

Rare Interviews with Enigma Cryptanalyst Marian Rejewski

The Polish Embassy has posted a series of short interview segments with Marian Rejewski, the first person to crack the Enigma. Details from his biography...

Declassified NSA Newsletters

Through a 2010 FOIA request yes, it took that long, we have copies of the NSAs KRYPTOS Society Newsletter, "Tales of the Krypt," from 1994 to 2003. There are many interesting things in the 800 pages of newsletter. There are many redactions. And a 1994 review of Applied Cryptography by redacted:...

LLMs and Phishing

Heres an experiment being run by undergraduate computer science students everywhere: Ask ChatGPT to generate phishing emails, and test whether these are better at persuading victims to respond or click on the link than the usual spam. Its an interesting experiment, and the results are likely to...

How AI Could Write Our Laws

Nearly 90% of the multibillion-dollar federal lobbying apparatus in the United States serves corporate interests. In some cases, the objective of that money is obvious. Google pours millions into lobbying on bills related to antitrust regulation. Big energy companies expect action whenever there ...

Obligatory ChatGPT Post

Seems like absolutely everyone everywhere is playing with Chat GPT. So I did, too…. Write an essay in the style of Bruce Schneier on how ChatGPT will affect cybersecurity. As with any new technology, the development and deployment of ChatGPT is likely to have a significant impact on the field of...

AirTags Are Used for Stalking Far More than Previously Reported

Ever since Apple introduced AirTags, security people have warned that they could be used for stalking. But while there have been a bunch of anecdotal stories, this is the first vaguely scientific survey: Motherboard requested records mentioning AirTags in a recent eight month period from dozens o...

Nation-State Attacker of Telecommunications Networks

Someone has been hacking telecommunications networks around the world: LightBasin aka UNC1945 is an activity cluster that has been consistently targeting the telecommunications sector at a global scale since at least 2016, leveraging custom tools and an in-depth knowledge of telecommunications...

Recovering Real Faces from Face-Generation ML System

New paper: "This Person Probably Exists. Identity Membership Attacks Against GAN Generated Faces. Abstract: Recently, generative adversarial networks GANs have achieved stunning realism, fooling even human observers. Indeed, the popular tongue-in-cheek website http://thispersondoesnotexist.com,...

Designing Contact-Tracing Apps

Susan Landau wrote an essay on the privacy, efficacy, and equity of contract-tracing smartphone apps. Also see her excellent book on the topic...

History of the HX-63 Rotor Machine

Jon D. Paul has written the fascinating story of the HX-63, a super-complicated electromechanical rotor cipher machine made by Crypto AG...

Fugitive Identified on YouTube By His Distinctive Tattoos

A mafia fugitive hiding out in the Dominican Republic was arrested when investigators found his YouTube cooking channel and identified him by his distinctive arm tattoos...

Including Hackers in NATO Wargames

This essay makes the point that actual computer hackers would be a useful addition to NATO wargames: The international information security community is filled with smart people who are not in a military structure, many of whom would be excited to pose as independent actors in any upcoming...

Investigating the Navalny Poisoning

Bellingcat has investigated the near-fatal poisoning of Alexey Navalny by the Russian FSB back in August. The details display some impressive traffic analysis. Navalny got a confession out of one of the poisoners, displaying some masterful social engineering. Lots of interesting opsec details in...

FireEye Hacked

FireEye was hacked by -- they believe -- "a nation with top-tier offensive capabilities": During our investigation to date, we have found that the attacker targeted and accessed certain Red Team assessment tools that we use to test our customers’ security. These tools mimic the behavior of many...

Nihilistic Password Security Questions

Posted three years ago, but definitely appropriate for the times...

The NSA on the Risks of Exposing Location Data

The NSA has issued an advisory on the risks of location data. Mitigations reduce, but do not eliminate, location tracking risks in mobile devices. Most users rely on features disabled by such mitigations, making such safeguards impractical. Users should be aware of these risks and take action bas...

Fooling NLP Systems Through Word Swapping

MIT researchers have built a system that fools natural-language processing systems by swapping words with synonyms: The software, developed by a team at MIT, looks for the words in a sentence that are most important to an NLP classifier and replaces them with a synonym that a human would find...

On Cyber Warranties

Interesting article discussing cyber-warranties, and whether they are an effective way to transfer risk as envisioned by Ackerlof's "market for lemons" or a marketing trick. The conclusion: Warranties must transfer non-negligible amounts of liability to vendors in order to meaningfully overcome t...

Firefox Enables DNS over HTTPS

This is good news: Whenever you visit a website -- even if it's HTTPS enabled -- the DNS query that converts the web address into an IP address that computers can read is usually unencrypted. DNS-over-HTTPS, or DoH, encrypts the request so that it can't be intercepted or hijacked in order to send...

Apple Abandoned Plans for Encrypted iCloud Backup after FBI Complained

This is new from Reuters: More than two years ago, Apple told the FBI that it planned to offer users end-to-end encryption when storing their phone data on iCloud, according to one current and three former FBI officials and one current and one former Apple employee. Under that plan, primarily...

Brazil Charges Glenn Greenwald with Cybercrimes

Glenn Greenwald has been charged with cybercrimes in Brazil, stemming from publishing information and documents that were embarrassing to the government. The charges are that he actively helped the people who actually did the hacking: Citing intercepted messages between Mr. Greenwald and the...

Mailbox Master Keys

Here's a physical-world example of why master keys are a bad idea. It's a video of two postal thieves using a master key to open apartment building mailboxes. Changing the master key for physical mailboxes is a logistical nightmare, which is why this problem won't be fixed anytime soon...

Yubico Security Keys with a Crypto Flaw

Wow, is this an embarrassing bug: Yubico is recalling a line of security keys used by the U.S. government due to a firmware flaw. The company issued a security advisory today that warned of an issue in YubiKey FIPS Series devices with firmware versions 4.4.2 and 4.4.4 that reduced the randomness ...

Fooling Automated Surveillance Cameras with Patchwork Color Printout

Nice bit of adversarial machine learning. The image from this news article is most of what you need to know, but here's the research paper...

Excellent Analysis of the Boeing 737 Max Software Problems

This is the best analysis of the software causes of the Boeing 737 MAX disasters that I have read. Technically this is safety and not security; there was no attacker. But the fields are closely related and there are a lot of lessons for IoT security -- and the security of complex socio-technical...

Security Risks of Chatbots

Good essay on the security risks -- to democratic discourse -- of chatbots...

Terahertz Millimeter-Wave Scanners

Interesting article on terahertz millimeter-wave scanners and their uses to detect terrorist bombers. The heart of the device is a block of electronics about the size of a 1990s tower personal computer. It comes housed in a musician's black case, akin to the one Spinal Tap might use on tour. At t...

Facebook Is Using Your Two-Factor Authentication Phone Number to Target Advertising

From Kashmir Hill: Facebook is not content to use the contact information you willingly put into your Facebook profile for advertising. It is also using contact information you handed over for security purposes and contact information you didn't hand over at all, but that was collected from other...

Hijacking Emergency Sirens

Turns out it's easy to hijack emergency sirens with a radio transmitter...

Friday Squid Blogging: Squid Pin

There's a squid pin on Kickstarter. 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...

XKCD's Smartphone Security System

Funny...

Susan Landau's New Book: Listening In

Susan Landau has written a terrific book on cybersecurity threats and why we need strong crypto. Listening In: Cybersecurity in an Insecure Age. It's based in part on her 2016 Congressional testimony in the Apple/FBI case; it examines how the Digital Revolution has transformed society, and how la...

Vulnerability in Amazon Key

Amazon Key is an IoT door lock that can enable one-time access codes for delivery people. To further secure that system, Amazon sells Cloud Cam, a camera that watches the door to ensure that delivery people don't abuse their one-time access privilege. Cloud Cam has been hacked: But now security...

Denuvo DRM Cracked within a Day of Release

Denuvo is probably the best digital-rights management system, used to protect computer games. It's regularly cracked within a day. If Denuvo can no longer provide even a single full day of protection from cracks, though, that protection is going to look a lot less valuable to publishers. But that...

Securing a Raspberry Pi

A Raspberry Pi is a tiny computer designed for makers and all sorts of Internet-of-Things types of projects. Make magazine has an article about securing it. Reading it, I am struck by how much work it is to secure. I fear that this is beyond the capabilities of most tinkerers, and the result will...

Is Continuing to Patch Windows XP a Mistake?

Last week, Microsoft issued a security patch for Windows XP, a 16-year-old operating system that Microsoft officially no longer supports. Last month, Microsoft issued a Windows XP patch for the vulnerability used in WannaCry. Is this a good idea? This 2014 essay argues that it's not: The zero-day...

Stealing Voice Prints

This article feels like hyperbole: The scam has arrived in Australia after being used in the United States and Britain. The scammer may ask several times "can you hear me?", to which people would usually reply "yes." The scammer is then believed to record the "yes" response and end the call. That...

OpenAI’s GPT-5.5 is as Good as Mythos at Finding Security Vulnerabilities

The UK's AI Security Institute evaluated GPT-5.5's ability to find security vulnerabilities, and found that it is comparable to Claude Mythos. Note that the OpenAI model is generally available. Here is the Institute's evaluation of Mythos. And here is an analysis of a smaller, cheaper model. It...

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, ...

Generative AI as a Cybercrime Assistant

Anthropic reports on a Claude user: We recently disrupted a sophisticated cybercriminal that used Claude Code to commit large-scale theft and extortion of personal data. The actor targeted at least 17 distinct organizations, including in healthcare, the emergency services, and government and...

LLMs Acting Deceptively

New research: "Deception abilities emerged in large language models": Abstract: Large language models LLMs are currently at the forefront of intertwining AI systems with human communication and everyday life. Thus, aligning them with human values is of great importance. However, given the steady...

FBI Seizes BreachForums Website

The FBI has seized the BreachForums website, used by ransomware criminals to leak stolen corporate data. If law enforcement has gained access to the hacking forums backend data, as they claim, they would have email addresses, IP addresses, and private messages that could expose members and be use...

Hardware Vulnerability in Apple’s M-Series Chips

Its yet another hardware side-channel attack: The threat resides in the chips’ data memory-dependent prefetcher, a hardware optimization that predicts the memory addresses of data that running code is likely to access in the near future. By loading the contents into the CPU cache before it’s...

AI and US Election Rules

If an AI breaks the rules for you, does that count as breaking the rules? This is the essential question being taken up by the Federal Election Commission this month, and public input is needed to curtail the potential for AI to take US campaigns even more off the rails. At issue is whether...

Friday Squid Blogging: Protecting Cephalopods in Medical Research

From Nature: Cephalopods such as octopuses and squid could soon receive the same legal protection as mice and monkeys do when they are used in research. On 7 September, the US National Institutes of Health NIH asked for feedback on proposed guidelines that, for the first time in the United States...

US Cyber Command Operations During the 2022 Midterm Elections

The head of both US Cyber Command and the NSA, Gen. Paul Nakasone, broadly discussed that first organizations offensive cyber operations during the runup to the 2022 midterm elections. He didnt name names, of course: We did conduct operations persistently to make sure that our foreign adversaries...