Revision Note: V1.0 (March 24, 2015): Advisory published.
Summary: Microsoft is aware of improperly issued digital certificates coming from the subordinate CA, MCS Holdings, which could be used in attempts to spoof content, perform phishing attacks, or perform man-in-the-middle attacks. The improperly issued certificates cannot be used to issue other certificates, impersonate other domains, or sign code. This issue affects all supported releases of Microsoft Windows.