TLSv1.2, RC4 disabled
https://support.microsoft.com/en-us/kb/2978675
https://technet.microsoft.com/library/security/2960358
| On May 13, 2014, Microsoft announced the availability of an update
| for Microsoft .NET Framework that disables RC4 in Transport Layer
| Security (TLS) through the modification of the system registry. Use
| of RC4 in TLS could allow an attacker to perform man-in-the-middle
| attacks and recover plaintext from encrypted sessions.
| As of October 13, 2015, Microsoft is broadening the affected software
| list to include Windows 10 systems that are running .NET Framework
| 3.5 applications and systems with .NET Framework 4.6 installed that
| are running .NET Framework 4.5/4.5.1/4.5.2 applications.
TLS has been updated from 1.0 to 1.2