Share, see & unshare
Encryption, access and revocation live inside the file and are enforced everywhere it goes, for as long as it exists. This page is the owner's view of those three powers.
#Share
Open a file and name the people who may open it: an email address or an @name, one or many. Each person receives a link. The first time a recipient opens a SuperFile they confirm their mailbox with a one-time code, which creates their (free) SuperSecure account; from then on the file opens for them wherever they are signed in.
Roles: Viewers open the file in the protected viewer; Editors can also change a SuperDoc. A team or a whole organisation can be named at once on Business tiers and above.
Access is decided at open time, not at send time: every open asks the licence server whether this person, on this device, may see this file right now.
#See
The file's trail shows every open — who, approximate location, device, when — and every attempt by a device that was not allowed. Requests for access from people not on the list appear as Approve / Deny prompts. The trail can be exported as the compliance record for the file.
#Unshare
Pull access back from one person, or Unshare all, in one click. The next open anywhere is refused: a browser tab that is already open loses its licence on the next key request, and a downloaded copy stops opening too, because a copy without your half of the key is ciphertext.
On the Free plan, an unshare is metered at $1; every paid plan includes unlimited unsharing. See Plans & tiers.
#Requests, expiry and re-sharing
- A person who receives a link without being on the list can request access; you approve or deny from the trail.
- Shares can carry an expiry; an expired share behaves like an unshare.
- Re-sharing by a recipient is not possible: forwarding the link forwards nothing but an address that will ask us who is asking.
#What a regular file cannot do
| Regular file | SuperFile |
|---|---|
| Anyone it reaches can open it, forever | Only the people you name can open it |
| Every forward and copy escapes your reach | Access is re-checked live on every open |
| No idea who opened it, or where | See who opened it, where and when |
| You cannot pull it back once it is out | Revoke it everywhere in one click |
| A stolen copy opens like the original | A stolen copy is useless without your key |
| Blind to the personal data inside | Classifies PII and keeps a compliance trail |
Updated September 2026