One of the biggest faults operated by Salt Typhoon Hackers has a patch available for years

• Security vulnerability in Microsoft exchange servers remains largely not corrected
• A fix was issued four years ago, but some users have clearly not updated
• This defect may have helped the piracy group Salt Typhoon

Critical security vulnerabilities seem to be a regular event in technological reports, with countless fixes and updates to follow – but this defect in the Microsoft exchange server could be one to take very seriously.

Most of us know the major incident during which 9 American telecommunications giants were raped in what seemed to be a campaign of cyber-espionage sponsored by the Chinese state. The attack, attributed to the hacking of the Salt Typhoon group, would have, at least in part, exploited a critical security flaw known in Microsoft Exchange Server.