Reading Time: 2 minutes Summary: In a recent attack on Microsoft’s on-premises Exchange Servers by the group known as Hafnium, a critical vulnerability has been exposed. With the exploit now public knowledge, there is a heightened risk of malicious actors exploiting this vulnerability for financial gain. This blog post highlights the urgent need to take action by checking Exchange versions, installing recommended patches, and investigating for signs of compromise. Access critical and official information from Microsoft and CERT to safeguard your IT and security departments. Learn more about the hackers’ modus operandi and stay vigilant to protect your Exchange Server environment.