Showing only posts by Bruce Schneier. Show all posts.

Most of 2023’s Top Exploited Vulnerabilities Were Zero-Days

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Zero-day vulnerabilities are more commonly used, according to the Five Eyes: Key Findings In 2023, malicious cyber actors exploited more zero-day vulnerabilities to compromise enterprise networks compared to 2022, allowing them to conduct cyber operations against higher-priority targets. In 2023, the majority of the most frequently exploited vulnerabilities were …

New iOS Security Feature Makes It Harder for Police to Unlock Seized Phones

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Everybody is reporting about a new security iPhone security feature with iOS 18: if the phone hasn’t been used for a few days, it automatically goes into its “Before First Unlock” state and has to be rebooted. This is a really good security feature. But various police departments …

AI Industry is Trying to Subvert the Definition of “Open Source AI”

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The Open Source Initiative has published (news article here ) its definition of “open source AI,” and it’s terrible. It allows for secret training data and mechanisms. It allows for development to be done in secret. Since for a neural network, the training data is the source code—it …

Prompt Injection Defenses Against LLM Cyberattacks

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Interesting research: “ Hacking Back the AI-Hacker: Prompt Injection as a Defense Against LLM-driven Cyberattacks “: Large language models (LLMs) are increasingly being harnessed to automate cyberattacks, making sophisticated exploits more accessible and scalable. In response, we propose a new defense strategy tailored to counter LLM-driven cyberattacks. We introduce Mantis, a …

Subverting LLM Coders

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Really interesting research: “ An LLM-Assisted Easy-to-Trigger Backdoor Attack on Code Completion Models: Injecting Disguised Vulnerabilities against Strong Detection “: Abstract : Large Language Models (LLMs) have transformed code com- pletion tasks, providing context-based suggestions to boost developer productivity in software engineering. As users often fine-tune these models for specific applications, poisoning …

IoT Devices in Password-Spraying Botnet

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Microsoft is warning Azure cloud users that a Chinese controlled botnet is engaging in “highly evasive” password spraying. Not sure about the “highly evasive” part; the techniques seem basically what you get in a distributed password-guessing attack: “Any threat actor using the CovertNetwork-1658 infrastructure could conduct password spraying campaigns …

Watermark for LLM-Generated Text

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Researchers at Google have developed a watermark for LLM-generated text. The basics are pretty obvious: the LLM chooses between tokens partly based on a cryptographic key, and someone with knowledge of the key can detect those choices. What makes this hard is (1) how much text is required for …

Are Automatic License Plate Scanners Constitutional?

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An advocacy groups is filing a Fourth Amendment challenge against automatic license plate readers. “The City of Norfolk, Virginia, has installed a network of cameras that make it functionally impossible for people to drive anywhere without having their movements tracked, photographed, and stored in an AI-assisted database that enables …

No, The Chinese Have Not Broken Modern Encryption Systems with a Quantum Computer

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The headline is pretty scary: “ China’s Quantum Computer Scientists Crack Military-Grade Encryption.” No, it’s not true. This debunking saved me the trouble of writing one. It all seems to have come from this news article, which wasn’t bad but was taken widely out of proportion. Cryptography …

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