Summary
Two stretches, two treatments. The PDF reaches Faxeroo over an encrypted HTTPS connection, then erases itself once the fax has passed. But the last kilometre, over the public telephone network to the correspondent's machine, stays in the clear: the fax standard never provided for encryption, with no provider.
A gap built into fax, whoever the provider
Fax transmission works through a dialogue of tones between two modems — a protocol dating from the late 1970s, when no encryption layer was ever added. The receiving device expects a signal it can print; it cannot decrypt protected content. No provider can promise encryption covering even the final printed page.
The segment Faxeroo secures
HTTPS carries your document to our servers: neither someone listening in on your Wi-Fi nor your access provider can read it. Once it arrives on our machines, we use it to compose and send the fax, after which it disappears automatically.
After being turned into a fax signal, it goes over the telephone line to the receiving machine — without protection, just like every other fax sent anywhere.
Where the everyday risk lurks
Installing a tap on a telephone line requires direct access to the network and specialized tools. Ordinary failures are simpler: a mistyped digit in the number, or paper left in the feed of a shared machine. Verify the number again, notify the recipient, then add their name and "confidential" to the text of your cover page.
Truly sensitive document? Ask your counterpart whether they offer a protected channel — secure portal, encrypted professional messaging. The fax security guide reviews the options.
Key points
- The PDF reaches Faxeroo under HTTPS.
- Then the file erases itself, without intervention.
- The final telephone line stays in the clear, for every fax service.
- Concrete risk: a wrong number, an openly accessible fax machine.