Scan states
- Pending: the finalized object is waiting for a scanner result.
- Clean: no configured signature was detected and normal access can continue.
- Quarantined: the scanner reported malware or an invalid object and downloads stay blocked.
- Unavailable: the scanner could not complete; Astral fails closed for protected access until a safe retry succeeds.
If a file is quarantined
- Do not rename or re-upload the same bytes to bypass the result.
- Confirm the source through a separate trusted channel.
- Run an up-to-date local security scan if you possess an authorized original.
- Delete the quarantined transfer or contact the sender for a clean replacement.
Scanning is one layer
A clean result is not a guarantee that a file is harmless. Keep the browser and operating system updated, verify unexpected senders, and avoid enabling macros or executable content you did not request.
Note: End-to-end encrypted files cannot be scanned server-side because Astral never receives their decryption key.