Is Signal Spam safe?

Clean risk

Signal Spam hashes the hostname of every HTTPS page you visit and sends it to signal-spam.fr every 5 seconds for phishing checks.

Beyond reporting spam from supported webmail sites, the extension monitors navigation across all websites: it strips and XXH64-hashes each visited hostname and POSTs the hashes to vrf01.signal-spam.fr roughly every 5 seconds (a feature called SurfSafe, on by default). When a page matches its phishing database or an error occurs, it also sends the full URL plus a persistent random ID. When you report an email, the full message (headers, body, and links) is base64-encoded and sent to www.signal-spam.fr along with your webmail account credentials, and on some providers a page-injected script captures the webmail authorization token to fetch the raw message.

VERIFROMv4.3.7Chrome Web Store
0Risk
Who publishes it

VERIFROM - no other listings under this identity, 17 shared hostnames

What this publisher told the store about itself, and the other listings that told it the same thing.

Publisher
VERIFROM
Registered address
20 rue des 3 Résistants, CLERMONT-FERRAND 63100, FR
Registered contact
Emmanuel SELLIER

Shared hosts - 17 hostnames

Hostnames hardcoded in this extension that few other listings call. That can mean one operator behind both, and it can equally mean a small shared vendor, so it is context rather than a conclusion. Hosts that many listings call are left out: they are services, not connections.

apis.mail.aol.com
Also called by 1 other listing: Extension Signal Spam
files.signal-spam.fr
Also called by 1 other listing: Extension Signal Spam
mailo.com
Also called by 1 other listing: Extension Signal Spam
vrfbdd01.signal-spam.fr
Also called by 1 other listing: Extension Signal Spam
apis-mail.laposte.net
Also called by 2 other listings
assistance.signal-spam.fr
Also called by 2 other listings
cdn.verifrom.net
Also called by 2 other listings
imp.free.fr
Also called by 2 other listings
services.verifrom.com
Also called by 2 other listings
vrf01.signal-spam.fr
Also called by 2 other listings
web-mail.laposte.net
Also called by 2 other listings
webmail-rc.free.fr
Also called by 2 other listings
zimbra.free.fr
Also called by 2 other listings
signal-spam.fr
Also called by 3 other listings
webmail.mail.ovh.net
Also called by 3 other listings
webmail.free.fr
Also called by 4 other listings, including YouCare Home - The charitable search engine
webmail.sfr.fr
Also called by 5 other listings, including YouCare Home - The charitable search engine, mailcheck, suivi d'ouverture d'e-mails

AI-generated. Findings may contain errors. Those marked Verified have been manually reviewed.

Publishers can request a review.

Where it sends data

Destinations our analysis observed Signal Spam 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.

  • vrf01.signal-spam.fr

    Signal Spam sends data to vrf01.signal-spam.fr. No other extension we have analyzed sends data here.

  • www.signal-spam.fr

    Signal Spam sends data to www.signal-spam.fr. No other extension we have analyzed sends data here.

Updated 2 November 2026npkncdihipibabapnailakhpajlglbfk