Is Smart Adblocker safe?

Question

Accepted Answer

Smart Adblocker is critical risk. Our dynamic analysis captured four POST requests from this ad blocker's service worker to smartadblocker.com immediately after each page navigation. Each request body contains the full URL of the page just visited, a persistent user identifier, the previous page's URL, a blocked-ad count, and a timestamp — base64-encoded in a single payload field. This transmits your full browsing history to the extension vendor's server without a disclosure in the Chrome Web Store listing. Our dynamic analysis confirmed a UUID — '6a7ec0b8-ba0c-443f-a105-c213096c80bd' — present in every POST request to smartadblocker.com across all four observed navigations, including visits to google.com, amazon.com, and facebook.com. This identifier is generated once at installation using crypto.randomUUID() and stored permanently in chrome.storage.local. Because it is transmitted with each navigation event, the vendor can link every page visit back to a single install over any period of time.

Is Smart Adblocker safe?

Findings