Late Thursday Microsoft issued a warning of another threat to Microsoft Exchange (Outlook). Microsoft discovered a new family of ransomeware known as DearCry being used to direct attacks on un-patched on-premise Exchange Servers. In response Microsoft released an update today that serves as a temporary measure to help protect users from vulnerable machines. This is the second attack in just 10-days against Microsoft after initially discovering a foreign state sponsored hacking group was able to breach on-premise Exchange Servers via zero-day vulnerabilities. As of March 10th it was reported that up to 125,000 Exchange Servers remain vulnerable to the initial attack.