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This is quite troubling.

Prompt Injection Via Road Signs

Abstract: Embodied Artificial Intelligence (AI) promises to handle edge cases in robotic vehicle systems where data is scarce by using common-sense reasoning grounded in perception and action to generalize beyond training distributions and adapt to novel real-world situations. These capabilities, however, also create new security risks. In this paper, we introduce CHAI (Command Hijacking against embodied AI), a new class of prompt-based attacks that exploit the multimodal language interpretation abilities of Large Visual-Language Models (LVLMs). CHAI embeds deceptive natural language instructions, such as misleading signs, in visual input, systematically searches the token space, builds a dictionary of prompts, and guides an attacker model to generate Visual Attack Prompts. We evaluate CHAI on four LVLM agents; drone emergency landing, autonomous driving, and aerial object tracking, and on a real robotic vehicle. Our experiments show that CHAI consistently outperforms state-of-the-art attacks. By exploiting the semantic and multimodal reasoning strengths of next-generation embodied AI systems, CHAI underscores the urgent need for defenses that extend beyond traditional adversarial robustness.

https://www.schneier.com/blog/archives/2026/02/prompt-injection-via-road-signs.html
How Many Guns in the U.S.:

Report Highlights: The United States has more civilian-owned guns than any other nation. Estimates suggest the country has hundreds of millions of firearms.

The United States has between 400 million and 500 million privately owned firearms.

46% of American households, approximately 65.19 million, contain at least one firearm.

In 2026, there are 1.5 guns per U.S. resident, and 2 guns per U.S. adult (over 18).

The majority of firearms in the U.S. are handguns (55-60%).

https://ammo.com/articles/how-many-guns-in-the-us
Forwarded from PsyOps Memes