Supernote and on-device encryption: what work users should know

A screen lock stops someone from opening your notebook through its ordinary interface. Encryption at rest makes data stored in memory unreadable without the right key, assuming the feature is properly implemented and the device is locked. If a tablet is lost or stolen, that extra protection matters against someone trying to get at its storage by more technical means.

Neither feature covers everything. An unlocked device can still expose notes, and exported copies need protection wherever they land. The practical question is what happens to meeting notes, customer details, plans and employee information when a tablet leaves your control.

A paper notebook can be lost too. A digital one may carry years of searchable work in a single device, which makes a clear storage-security answer more valuable.

Supernote's security instructions explain its six-digit screen password and file or folder passwords. They say USB access is blocked while the device is locked. They also say a file's password lock does not survive transfer to another device over USB. That makes the file lock useful inside the Supernote interface, but it should not be treated as a portable encrypted file.

In a June 2026 statement about HIPAA, Supernote said it was no longer accepting Business Associate Agreements while working toward an anticipated standard involving encryption of electronic health information at rest. Supernote also said its products were not currently HIPAA-compliant. This is the company's description of its position; it is not a finding that every Supernote file is stored unencrypted.

If a security policy requires full device encryption, a screen-lock setting alone is not enough evidence. Ask which Manta or Nomad storage areas are encrypted, whether encryption is automatic, how keys are protected and what happens when files are exported.

Kindle Scribe: In its cloud drive guidance for 2025 and later Scribe models, Amazon says information is encrypted while stored on the device, in the cloud and during transfer. That is an on-device encryption claim for this connected workflow, but Amazon does not explain full tablet-storage encryption there. Amazon also says Scribe notebooks are backed up to its cloud when the device is online and Sync is on. A business buyer should review both local protection and cloud policy.

BOOX: Its business page describes passcodes, fingerprint access on supported devices, file protection and encryption for synced data and transfers. It does not give a model-specific full-storage encryption design. Those controls are useful, but they do not establish the same claim as reMarkable's block-level specification.

Viwoods: Its business page promotes passcodes, fingerprint unlocking and “Data Encryption First.” The page does not say precisely what is encrypted on the device or how keys are held. We would ask for a technical statement before treating it as equivalent to the documented reMarkable implementation.

Supernote's HIPAA statement says the device can be used without connecting to its cloud and that files can move by USB. It also offers a private cloud that keeps synced files on hardware you control. For a team that wants to limit where notes are sent, those are meaningful options.

Offline use and local encryption address different risks. Staying offline limits network exposure. Encryption at rest protects stored information if someone gets physical access to the device. A work policy may call for both. And if you copy a file to a computer or USB drive, secure that copy separately; Supernote says its file-password lock does not travel with the file.