Is CFCA CryptoKit.NCB Extension safe?

Low risk

CFCA CryptoKit.NCB Extension lets approved NCB web origins choose a native messaging host and forward payloads to it.

Pages on the extension's allowed NCB and CFCA-related origins can ask the extension to connect to a named native messaging host on the user's computer. After that connection, those pages can send payload objects through the extension to the selected native host, with browser origin access limited to the manifest-listed NCB domains.

Part of this rating comes from analysis signals we haven't published as detailed findings yet.

ncbchinav3.4.0.5Chrome Web Store
17Risk

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 3.4.0.5. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to.

  • Read and change your data on ncbdt.local

    http://*.ncbdt.local/* and 1 more

  • Read and change your data on ncbmip.com

    http://*.ncbmip.com/* and 1 more

  • Read and change your data on ncbchina.cn

    https://*.ncbchina.cn/*

  • Talk to a program installed on your computer, outside the browser's sandbox

    nativeMessaging

Updated 30 September 2026gbefnmgemlaamfmffgndffbfmhmpmfbl