Here are some steps you can take to help secure your information when using public fax machines:

1. Check that the security features are enabled, such as PIN protected access and dual factor authentication.
2. Check that the fax machine is connected to a secure network with both encrypted data journeys and authentication.
3. If sending a paper document, check that it is secure and free from confidential information before sending.
4. Shred documents once transported over a public fax machine.