PhishingNet: privacy policy and project documentation
Last updated: August 2026
PhishingNet (the “Extension”) is a browser extension that checks the email you are viewing in Gmail — and, if you choose to turn it on, in Outlook on the web — for signs of phishing, and shows an inline verdict with the reasons behind it. This policy explains exactly what the Extension does and does not do with your data.
When you open an email in Gmail — or in Outlook on the web, if you have turned that on — the Extension reads that single email as shown on the page: its sender, subject, body text, and the links it contains. It sends that text to the PhishingNet analysis service to be checked. It does this only for the email you are currently viewing.
In Gmail only, the Extension also reads the sender-authentication result that Gmail itself displays for that message (the “mailed-by” and “signed-by” values shown under Show details), and sends it along with the text. This is Gmail’s own verification of whether the message genuinely came from the domain it claims, and it lets the analyzer avoid wrongly flagging legitimate mail from banks, retailers, and other services. It is read from Gmail’s own interface — the Extension does not perform any authentication check of its own, and does not access your account to obtain it.
In Outlook on the web the Extension reads no authentication data of any kind. It sends the visible message text only.
The Extension also stores your settings (whether automatic scanning is on, and the analyzer address) in your browser’s extension storage.
The email text is sent to the PhishingNet analysis service
(https://phishing-analyzer-api-wq1v.onrender.com) solely to compute a phishing
verdict, a risk score, and the supporting evidence, which are returned to the Extension
and displayed to you.
storage — to save your settings (scanning on/off, analyzer address).mail.google.com (content script) — to read the email you have open
and to display the safety banner inside Gmail. This access is granted when you
install the Extension.outlook.live.com, outlook.office.com and
outlook.office365.com — the same reading and banner display inside Outlook on
the web. This access is optional and off by default. It is requested only when
you press Enable next to Outlook on the web in the Extension’s popup and
approve Chrome’s own prompt, and you can withdraw it at any time from that same
button or from chrome://extensions → PhishingNet → Site access. Until you
grant it, the Extension does not run on, and reads nothing from, any Outlook page.scripting — to install the reader into Outlook pages after you have granted
that optional access. It gives the Extension no access to any site it does not
already have your permission for.You can turn automatic scanning off at any time from the Extension’s popup, turn Outlook support off (which withdraws the Outlook permission entirely), change the analyzer address, or remove the Extension from your browser to stop all processing.
The Extension is not directed to children under 13 and does not knowingly collect data from them.
This policy may be updated from time to time; the “Last updated” date above will change accordingly.
Questions about this policy can be sent to guptadevesh@hotmail.com.