• A safety vulnerability in Microsoft Exchange servers remain largely unmatched
• A solution was issued four years ago but some users obviously did not
• This error may have helped the hacking group Salt Typhon

Critical safety vulnerability seems to be a regular occurrence in technology reporting, with countless patches and updates to keep track of – but this Microsoft Exchange Server error can be one to take very seriously.

Most of us will be familiar with the big incident where 9 American telecommunications commercials were broken into what seemed to be a Chinese state sponsored cyber-spionage campaign. The attack, which is attributed to hacking by the Salphoon group, is said to have at least partially utilized a known critical security error in Microsoft Exchange Server.