Can version history show who changed a file?¶
Version history may show which account, application or process the cloud service associated with a file change.
It does not automatically prove which person made that change.
What this means in practice¶
The account may be shared, compromised or used through delegated access. An application, service account, automation or synchronisation process may also create a new version.
Some services record detailed revisions, including the account, time and specific change. Others keep only periodic snapshots or show that the file was modified without identifying the exact edit.
Also check whether the provider’s displayed history is complete. Older versions may have expired, been merged or become unavailable because of retention settings.
Use careful language. Say that the service attributed the version to an account or process, then explain the evidence supporting any conclusion about the person.
What this may show¶
Investigators should identify the file, version number, timestamp, recorded editor or application and the permissions in place at the time.
Where precise authorship matters, compare the version record with session identifiers, device evidence, application logs, communications and work activity.
What this does not show on its own¶
The dangerous assumption is that the named editor is the human author.
What to do next¶
Check whether the account was active on several devices, whether several users could access it and whether the change followed an upload, import, autosave or sync event.
Do not assume that one version equals one deliberate edit. Collaborative tools may combine several changes, and automated processes may create versions without visible user action.
Key takeaway
Version history can identify the account or process linked to a change, but personal attribution requires session, device and wider corroborating evidence.