Activity history and privacy on a shared Gemini account

On a shared account, everyone who signs in can see each other's chat titles and contents in the left sidebar. That's how Google accounts work, not a security problem. Treat the account like a public computer.

What's visible to others

• The Recent chat list in Gemini's left sidebar is visible to anyone signed in to the account.
• The Gemini Apps Activity log at myactivity.google.com is account-wide too, so any user can browse it.
• Seeing unfamiliar chats simply means other customers are using the account normally — it doesn't mean the account was hijacked.

The Gemini Apps Activity switch

Open myactivity.google.com/product/gemini — the on/off control for Gemini Apps Activity sits at the top of the page.

• When it's off, new chats stop being saved to the activity log (Google still keeps them for up to 72 hours to run the service).
• Important: this switch is account-level. Turning it off affects every user sharing the account and disables features that rely on history, such as personalized replies. Don't change it on your own — ask support first if you really need to.

Practical privacy habits

1. Never type names, phone numbers, addresses, ID numbers, or card details into chats.
2. If a chat contains anything personal, delete it from the sidebar as soon as you're done.
3. Don't use this account for "Sign in with Google" on other websites or apps.