Is Fast Signature safe?
Fast Signature relays eFast signing requests and active-tab IDs to a local native messaging host.
On configured eFast and DFAST signing pages, Fast Signature listens for page events such as FAST_signPES, FAST_signPKCS7, and certificate-signing requests. It forwards the event details, plus the active tab and window IDs, to the local fast.sign.web.extension native host and sends native-host responses back to parapheur tabs.
Who publishes itstore.cdcfast - no other listings under this identity
store.cdcfast - no other listings under this identity
What this publisher told the store about itself, and the other listings that told it the same thing.
AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.
Publishers can request a review.
What it can do
Permissions this extension asks for, as declared in version 2.5.2. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.
Talk to a program installed on your computer, outside the browser's sandbox
nativeMessaging
See the address and title of every tab you have open
tabs
Where it sends data
Destinations our analysis observed Fast Signature contacting. Sending data somewhere is not a finding on its own - an extension that syncs your settings has to talk to its own server - but it is where your data can go, and who else it goes to.
- fast.sign.web.extension
Fast Signature sends data to fast.sign.web.extension. No other extension we have analysed sends data here.