Huge Microsoft Exchange vulnerability causes chaos
On March 2nd, Microsoft announced that four zero-day vulnerabilities in its Exchange email service were being exploited by attackers, leaving hundreds of thousands of companies worldwide under threat. Microsoft released emergency patches and tools for clients to install as soon as possible. There are fears that tens of thousands of businesses, especially small to medium companies without dedicated cybersecurity staff, may not yet have applied the fixes. Attackers have used the ProxyLogon vulnerabilities to gain access to Exchange servers from which they are able to execute commands remotely.