Microsoft says 92% of vulnerable Exchange servers had been patched/mitigated, and reiterates that patches do not necessarily remove the access of the attacker (Liam Tung/ZDNet)

Liam Tung / ZDNet:
Microsoft says 92% of vulnerable Exchange servers had been patched/mitigated, and reiterates that patches do not necessarily remove the access of the attacker  —  If you're cleaning up a infected Exchange server, you need to look for traces of multiple threats, warns Microsoft.