AI Roundup — June 7, 2026

OpenAI Introduces Lockdown Mode to Defend Against Prompt Injection

OpenAI has unveiled a new security feature called Lockdown Mode, designed to reduce the risk of sensitive data being exposed through prompt injection attacks, according to TechCrunch.

Prompt injection is a category of attack in which malicious instructions are embedded in content that a model processes, potentially causing it to reveal or mishandle information it should otherwise protect. Lockdown Mode is aimed at lowering the likelihood that sensitive data is surfaced during such an attack.

TechCrunch notes that even with Lockdown Mode enabled, ChatGPT may not be fully immune to prompt injection attempts. OpenAI's stated goal with the feature is risk reduction rather than complete elimination of the vulnerability. No additional technical specifications about how Lockdown Mode is implemented were detailed in the report at the time of publication.

Apple Prepares Major Siri Overhaul Ahead of WWDC 2026

Apple's annual Worldwide Developers Conference (WWDC) is drawing close, and multiple outlets are reporting that a significant redesign of Siri is expected to be among the headline announcements.

According to TechCrunch, the conference is expected to include updates to Apple Intelligence alongside the Siri revamp. The Verge reports that Apple appears to be preparing to reintroduce a new version of Siri at WWDC on Monday, noting that the company has faced competitive pressure in the AI assistant space over the past several years.

Apple has not officially confirmed the full scope of announcements ahead of the event. Further details are expected to emerge when WWDC 2026 officially kicks off.

Those are the key AI product and engineering developments making headlines today. Check back for follow-up coverage as WWDC 2026 gets underway and more details emerge from OpenAI on the Lockdown Mode rollout.