01 / DECISION

Define the file state

A shared conference-room or bid-room PC can expose proposal files through an unlocked session, remembered sign-in, preview pane, recent-file list or offline cache even when Box access was initially correct.

Working rule

Separate Windows sessions, lock unattended devices and minimize offline proposal availability on computers used by multiple people.

02 / PROCEDURE

Run the control sequence

  1. 01

    Use named Windows accounts rather than a shared daily session.

  2. 02

    Require device lock before the user leaves the desk.

  3. 03

    Review remembered Box and browser sessions.

  4. 04

    Minimize offline availability and clear justified temporary exports.

  5. 05

    Test the next user session for recent-file and preview exposure.

03 / EVIDENCE

Record the local and provider layers

A useful control record names the proposal, Box workspace, Windows device, local path, accountable owner, permitted users, offline state, link audience, backup evidence and next review date. Keep passwords and client-confidential details out of the record. Use fictional documents for testing and preserve an approved recovery copy before changing the only working folder.

Recheck the design after Box Drive, Windows, Cloud Secure, account, device, storage or network changes. Confirm both the local experience and the provider state: a successful local lock does not prove a link was revoked, while a correct Box permission does not remove downloaded or cached Windows copies. Escalate unexplained mismatches instead of overwriting evidence near a bid deadline.

04 / BOUNDARY

Keep the claim narrow

A local folder password cannot replace Windows account separation, device encryption, endpoint policy, physical control or Box session management.

Test on the intended Windows account and exact local path, confirm the Box Drive client remains healthy, and verify the separate recovery copy without relying on the protected folder. Review collaborator and link state directly in Box. If the requirement includes centralized endpoint policy, device encryption, managed identities, legal hold or enterprise audit, use controls designed for those needs.

05 / QUESTIONS

Common questions

Does locking the local folder revoke a Box sharing link?

No. Manage links and collaborators in Box.

Does sync replace a separate backup?

No. Sync can propagate deletion or conflict; maintain and test a separate recovery copy.

Can a PC tool recover a stolen Box account?

No. Provider MFA, sessions and account recovery are separate controls.

06 / SOURCES

Primary references

References support specific controls and do not imply endorsement.