'Completely private': Meta AI gets Incognito Chat

Mark Zuckerberg announced Incognito Chat for Meta AI and WhatsApp, a private mode that erases conversations when the session ends.

Meta says the feature has no stored chat logs, is limited to adults, and includes safeguards against harmful prompts.

Critics warn that disappearing chats could make it harder to spot self-harm, violence, or abuse signals and to intervene in risky behavior.

The launch adds to growing competition in private AI messaging, while sharpening scrutiny of teen safety and platform accountability.