I've just been poking around at the new voucher purchase/SIP Config purchase options, looking to locate the call rates etc.
I noticed that if I'm not signed in, and I go to the buy vouchers button under "other options" I get a very plain looking page for sign in. No FPL headers or anything like that. Might scare some people

The other thing I noticed is that it's not HTTPS, so the password exchange is occurring in clear text. Tsk Tsk
