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The latest security news, distilled by AI into sharp ~100-word summaries. ByteBrief tracks security across dozens of tech sources and brings you only what matters, updated hourly. Tap any story for the full brief, or open the original source.

OpenAI has introduced Lockdown Mode, an optional security setting that limits features to protect users from prompt injection attacks. The feature is designed to offer advanced protection. Lockdown Mode is an optional setting, allowing users to choose their level of security. This setting is intended to provide users with more control over their security.
AMD developed a Linux DRM ioctl that is being disabled due to an ongoing security issue. The ioctl is being disabled to prevent potential security risks. The security issue is ongoing and has not been resolved. AMD is taking steps to address the issue.
The US Army warns congressional proposals could hinder construction of defense data centers on military bases. Two bills would ban Chinese-sourced equipment, risking delays due to lack of domestic components. The Army says private investment in data centers critical for AI and military operations may decline. Facilities at Fort Bliss and Dugway would include secure buildings for government operations under lease agreements.

The Sound Blaster Katana V2X speaker, sold by Creative Technologies for $283, can be hacked over the air to infect connected devices. Researcher Rasmus Moorats discovered the vulnerability by accident while trying to create a Linux tool to communicate with the speaker. The speaker's proprietary Creative Transport Protocol allows devices to send commands and receive responses, and Moorats found that his Bluetooth device could connect to the speaker without authentication.

OpenAI has begun rolling out Lockdown Mode, an optional security setting to protect against prompt injection attacks. Lockdown Mode limits some features in ChatGPT, such as image generation and file downloads, but allows image uploads and conversation sharing. It is designed for users handling sensitive data and is available to all personal accounts, including those on the free tier. Enabling Lockdown Mode prevents attackers from extracting sensitive data from accounts by limiting network requests that could be exploited.
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