Where do your videos go with NeuriEye?

Photos and videos: copies on your devices

In the current system, the Sentinel encrypts photos and videos locally before replicating them to authorized Viewers. Each Viewer receives its own copy and can browse already synchronized media in its local Journal.

Live audio and video are also end-to-end encrypted, using a session-specific key. Servers help connect devices and transport data: this architecture does not mean every connection is direct, with no infrastructure in between.

Neuribrain does not keep new media in a central library and does not hold the phones’ private keys. Older installations may still offer a migration for historical media; this does not apply to a fresh setup.

The server still has a role

It manages identities and memberships, permissions, device presence, connection coordination and diagnostics. Metadata, measurements and incidents are therefore stored to operate the service. NeuriEye is not an anonymous or “zero-data” service.

Your Google account identifies the Owner or guest. Initial pairing uses the same account on both devices, and the Sentinel then completes the cryptographic exchange. Account sign-in does not replace this local step.

This page explains how the product works. It does not claim that no information ever passes through a server or that infrastructure can be risk-free. Security also depends on your accounts, Android system and the people you give access to.

Invitations and revocation: understand the limits

The Owner can invite someone using their own account, choose permissions and revoke access. Read-only users cannot control the camera; sensitive settings and membership management remain reserved for the Owner.

Revocation cuts off future authorized access and rotates keys for the remaining devices. However, it cannot make a video disappear if someone has already exported, shared or recorded it another way. Only grant access to people you trust.

Lock your phones and protect your Google account. Encrypted communications do not protect against someone using your already unlocked device or a compromised operating system.

Local storage and losing a phone

The Journal first shows what has already been received. Media stored only on the Sentinel may be lost if that phone is destroyed before replication. Conversely, a copy actually received by a Viewer can be viewed locally without relying on a central video library.

Do not treat replication as an independent backup: deleting an event propagates to the devices so it does not reappear. To keep something important, deliberately use the save or share features, then protect the exported file.

When the Owner deletes a Sentinel, its memberships are revoked and it is reset, with local erasure when it comes back online. This is not a simple sign-out option to use for troubleshooting.

Before you start

• Check the camera angle and inform the people affected by your setup.
• Avoid including spaces whose access or use you do not control.
• Test actual media reception, not just notifications.
• Keep only what is useful and monitor free storage.
• For a question about your data, contact [email protected] without attaching unnecessary private content.

To get started, read our two-phone installation guide.