Probably this is the reason. It's asking for phone number and/or address.
Its not that.
Their HTTPS Certificate is using TLS 1.0 which is old and not as secure as 1.1 and 1.2.
Edge reported it as not secure due to using TLS 1.0, the page was encrypted but not secure as it could be.
Basically its not the RSA Certificate its how they have setup the SSL side of their server.
Let me run some tests to do with how secure their site is and I will get back.
*** update ***
I just run some Security Checks
on the dsl checker and it fails the tests.
They even have SSL3 which has exploits and should never be used.
They get a rating of F where as it should have a rating of A or A+
This is a rating of one of my sites
, as you will see its rated A+
I will email one of the people I have spoken to at BT Wholesale.
- Infinity 4 - 310Mbps (down), 31Mbps (up)
Edited by PaulKirby (Mon 20-Feb-17 18:28:03)