On November 10, Claroc Research reported that 35,578 of the 37,571 Grok apps it tested opened without any sign-in.
Some of those apps held confidential company and personal data. Claroc says "Anyone with the link" was preselected when people published.
If you built a lead form, order tracker or client tool with Grok, open each app today and switch its access to Invited users or Only you.
Then open the old link in a private window to make sure it asks for sign-in. You can also remove old chat share links at grok.com/share-links.
Landing pages with no stored data are fine to leave as they are.