New research into poisoning AI models : The researchers first trained the AI models using supervised learning and then used additional “safety training” methods, including more supervised learning, reinforcement learning, and adversarial training. After this, they checked if the AI still had hidden behaviors. They found that with specific prompts …

A group of Swiss researchers have published an impressive security analysis of Threema. We provide an extensive cryptographic analysis of Threema, a Swiss-based encrypted messaging application with more than 10 million users and 7000 corporate customers. We present seven different attacks against the protocol in three different threat models …

With the release of ChatGPT, I’ve read many random articles about this or that threat from the technology. This paper is a good survey of the field: what the threats are, how we might detect machine-generated text, directions for future research. It’s a solid grounding amongst all …

Mandiant is reporting on a new botnet. The group, which security firm Mandiant is calling UNC3524, has spent the past 18 months burrowing into victims’ networks with unusual stealth. In cases where the group is ejected, it wastes no time reinfecting the victim environment and picking up where things …

Bunnie Huang has created a Plausibly Deniable Database. Most security schemes facilitate the coercive processes of an attacker because they disclose metadata about the secret data, such as the name and size of encrypted files. This allows specific and enforceable demands to be made: “Give us the passwords for …

This is part 3 of Sean Gallagher’s advice for “securing your digital life.” [...]

ArsTechnica’s Sean Gallagher has a two – part article on “securing your digital life.” It’s pretty good. [...]

The office of the Director of National Intelligence released its “ Annual Threat Assessment of the U.S. Intelligence Community.” Cybersecurity is covered on pages 20-21. Nothing surprising: Cyber threats from nation states and their surrogates will remain acute. States’ increasing use of cyber operations as a tool of national …

At a hospital. [...]

I am a co-author on a report published by the Hoover Institution: “ Chinese Technology Platforms Operating in the United States.” From a blog post : The report suggests a comprehensive framework for understanding and assessing the risks posed by Chinese technology platforms in the United States and developing tailored responses …