Showing only posts in Bruce Schneier. Show all posts.

Ethical Problems in Computer Security

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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 questions. The field of ethics / moral philosophy has for centuries considered what …

Power LED Side-Channel Attack

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This is a clever new side-channel attack : The first attack uses an Internet-connected surveillance camera to take a high-speed video of the power LED on a smart card reader­or of an attached peripheral device­during cryptographic operations. This technique allowed the researchers to pull a 256-bit ECDSA key …

Security and Human Behavior (SHB) 2023

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I’m just back from the sixteenth Workshop on Security and Human Behavior, hosted by Alessandro Acquisti at Carnegie Mellon University in Pittsburgh. SHB is a small, annual, invitational workshop of people studying various aspects of the human side of security, organized each year by Alessandro Acquisti, Ross Anderson …

AI-Generated Steganography

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New research suggests that AIs can produce perfectly secure steganographic images: Abstract: Steganography is the practice of encoding secret information into innocuous content in such a manner that an adversarial third party would not realize that there is hidden meaning. While this problem has classically been studied in security …

Operation Triangulation: Zero-Click iPhone Malware

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Kaspersky is reporting a zero-click iOS exploit in the wild: Mobile device backups contain a partial copy of the filesystem, including some of the user data and service databases. The timestamps of the files, folders and the database records allow to roughly reconstruct the events happening to the device …

How Attorneys Are Harming Cybersecurity Incident Response

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New paper: “ Lessons Lost: Incident Response in the Age of Cyber Insurance and Breach Attorneys “: Abstract: Incident Response (IR) allows victim firms to detect, contain, and recover from security incidents. It should also help the wider community avoid similar attacks in the future. In pursuit of these goals, technical …

Brute-Forcing a Fingerprint Reader

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It’s neither hard nor expensive : Unlike password authentication, which requires a direct match between what is inputted and what’s stored in a database, fingerprint authentication determines a match using a reference threshold. As a result, a successful fingerprint brute-force attack requires only that an inputted image provides …

Expeditionary Cyberspace Operations

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Cyberspace operations now officially has a physical dimension, meaning that the United States has official military doctrine about cyberattacks that also involve an actual human gaining physical access to a piece of computing infrastructure. A revised version of Joint Publication 3-12 Cyberspace Operations—published in December 2022 and while …

On the Poisoning of LLMs

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Interesting essay on the poisoning of LLMs—ChatGPT in particular: Given that we’ve known about model poisoning for years, and given the strong incentives the black-hat SEO crowd has to manipulate results, it’s entirely possible that bad actors have been poisoning ChatGPT for months. We don’t …

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