Is faxing secure and privacy-compliant?
With mcpfax, the connection up to the service is encrypted via HTTPS, documents are deleted after 30 days and fax numbers are masked in logs. The transmission over the phone network, however, is not end-to-end encrypted – check the number and the receiving device.
Step by step
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1 Step 1
Know what's protected
The connection to mcpfax is encrypted via HTTPS, and you only log in on the mcpfax site. Fax documents are deleted automatically after 30 days, and fax numbers are masked in logs.
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2 Step 2
Know the limits
The fax transmission over the phone network itself is not end-to-end encrypted. And who can read along at the receiving device is up to the recipient.
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3 Step 3
Check before sending
Before every fax, Claude shows the fax number, pages and price. Compare the number carefully – nothing is sent until you say “Yes”.
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4 Step 4
Announce sensitive faxes
Take the number from a recent letter and let the recipient know in advance, so the fax isn't left lying at the machine.
The pictures are a simplified illustration. Menu names may differ slightly depending on the version.
Video transcript
Is faxing secure and privacy-compliant? The honest answer: with mcpfax, the connection up to the service is encrypted, but the transmission over the phone network is not. Let me show you what that means for you. The connection to mcpfax is encrypted via HTTPS, and you only ever log in on the mcpfax site. Fax documents are deleted automatically after thirty days, and fax numbers are masked in the logs. To be honest: over the phone network itself, a fax is not end-to-end encrypted. And what happens at the receiving device, such as who can read along there, is up to the recipient. That's why the most important step is checking the number. Before sending, Claude shows you the fax number, the pages and the price. Nothing goes out until you say yes. For sensitive documents, take the number from a recent letter and let the recipient know the fax is coming. This is not legal advice. If in doubt, ask your data protection advisor. You'll find the link to mcpfax in the description. We cover more about privacy and security on our channel, so feel free to subscribe.
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Create free accountFrequently asked questions
Is a fax end-to-end encrypted?
No. The connection to mcpfax is encrypted via HTTPS, but the transmission over the phone network itself is not.
How long does mcpfax store my documents?
Fax documents are deleted automatically after 30 days. Fax numbers are masked in logs.
Do I have to enter my login details in the chat?
No. You only log in on the mcpfax site; login details never belong in the chat.
Am I allowed to fax health or HR data?
That depends on your situation and your obligations. This is not legal advice – if in doubt, ask your data protection advisor.