Privacy & backups

In plain terms: a second brain only works if you trust it with everything, so privacy and safety are built in, not bolted on. Your brain belongs to you alone, only you can reach it, sensitive material is screened out automatically, and your data stays portable and backed up.

What this means for you

• Single owner. One brain, one person. Your information is never mixed with anyone else’s.
• Only you can get in. Sign-in is restricted to your approved account.
• Sensitive content is screened out. Anything that looks like a credential (passwords, API keys), and categories like financial or therapy notes, are caught and dropped before they enter the brain. This same check guards every source: notes, documents, and messages.
• Your most private synthesis is owner-only. Things like the daily brief are restricted to you, never shared.
• Backed up. The brain’s data is dumped on a schedule so it is never the only copy of itself.
• Portable by design. No single vendor owns your data; the pieces are meant to be swappable, so you are not locked in.

How it works (simply)

A deterministic safety scanner runs at every entry point and is the real guarantee, not an AI’s judgment. You stay in control of what gets promoted into the brain, especially for sensitive sources, where you review before anything lands. Scheduled backups keep a copy of everything.

Honest limits

• The automatic screen is deliberately strict and errs toward dropping borderline content. For the most sensitive sources, a human review step is kept on purpose.

Learn more

• Notes (the review-before-promote flow)
• Overview