Is FlowCrypt: Encrypt Gmail with PGP safe?
FlowCrypt ships a hardcoded Google OAuth client secret in its extension bundle.
The extension source includes a Google OAuth client ID and client secret in plain text. When FlowCrypt requests or refreshes Google OAuth tokens, it includes that client secret in requests to Google's OAuth token endpoint.
Part of this rating comes from analysis signals we haven't published as detailed findings yet.
Who publishes itFlowCrypt a. s. - no other listings under this identity, 2 shared hostnames
FlowCrypt a. s. - no other listings under this identity, 2 shared hostnames
What this publisher told the store about itself, and the other listings that told it the same thing.
Shared hosts - 2 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.
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 8.5.13. Asking for a permission is not a finding on its own - it is what the extension can do if it chooses to. The current listed version is 8.5.15, which we have not unpacked yet.
Read and change your data on flowcrypt.com
https://flowcrypt.com/*
Read and change your data on google.com
https://*.google.com/*
Read and change your data on outlook.live.com
https://outlook.live.com/*
Read and change your data on outlook.office365.com
https://outlook.office365.com/*
Read and change your data on outlook.office.com
https://outlook.office.com/*
Read and change your data on graph.microsoft.com
https://graph.microsoft.com/*
Read and change your data on login.microsoftonline.com
https://login.microsoftonline.com/*
Read and change your data on www.googleapis.com
https://www.googleapis.com/*
Schedule its own background tasks
alarms
Store data in your browser
storage
See the address and title of every tab you have open
tabs
Run its own code inside the pages you visit
scripting
Store an unlimited amount of data in your browser
unlimitedStorage
Sign you in with your Google account
identity
Where it sends data
Destinations our analysis observed FlowCrypt: Encrypt Gmail with PGP 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.
- oauth2.googleapis.com
FlowCrypt: Encrypt Gmail with PGP sends data to oauth2.googleapis.com. 13 other extensions we have analysed send data here.