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Privacy and devices / PRACTICAL GUIDE

Review who can open a cloud file-sharing link

Distinguish a named recipient from anyone holding a link before sharing business information.

Before you start

A file-sharing service you already use and permission to manage the chosen test file.

Read the access type

A sharing link can mean anyone with the address, a specific authenticated recipient or people inside an organisation. The visible file name and a successful share button do not tell you which boundary applies. Some services also allow link recipients to edit, download or reshare.

Use a harmless test document containing no customer information. This exercise reviews your existing service and does not require purchasing a different collaboration platform.

Set access for the actual audience

  1. Open the genuine sharing controls and inspect existing recipients and links. Identify direct account permissions separately from broadly accessible links.
  2. Choose the narrowest supported access that meets the task. For a named supplier, use a specific recipient where available rather than an unrestricted link forwarded through several inboxes.
  3. Select view or edit permissions deliberately. Use supported expiry or download restrictions when appropriate, while recognising that a recipient may still retain information they can view.
  4. Send the link through the approved channel after verifying the recipient. Do not assume the service confirmed the person's identity merely because you typed a familiar display name.

Verify with a controlled session

Open the test link in a session that is not authenticated as the owner, such as a separate browser profile. For restricted access, confirm it requires the intended identity or denies an unrelated test account. Do not publish the link to ask strangers whether they can open it.

Review existing access too

Changing one link may not remove direct permissions, other links or previously downloaded copies. Inspect the complete access list and remove obsolete grants using the service's supported controls. Check inherited folder access when an apparently private file remains available to a wider group.

Handle sensitive content thoughtfully

Avoid sharing secrets or full identity records just because a link can expire. An expiry controls future access through that mechanism; it cannot retrieve a screenshot or download already made. Choose an approved transfer method suited to the data.

Close the collaboration

After the work finishes, remove unneeded permissions and retain required business records according to your process. Document who owns the file and who reviews access. A good share has an intended audience, an appropriate permission and an observable access test, rather than only a convenient URL.

Official references

Consult the current vendor documentation if your version or screen differs.

Documentation-based draft. Commands have not all been executed against the named products in a lab. Validate configuration examples against your installed version before changing a working system.