What is the immediate procedure after MDE detects malware from a malicious email on an employee's personal account?

The immediate procedure after Microsoft Defender for Endpoint (MDE) detects malware from a malicious email on an employee's personal account involves disabling user access from the infected device and remediating the threat. This step is crucial for several reasons.

First, when malware is detected, prompt action is necessary to prevent the spread of the infection within the organization's network. By disabling user access from the infected device, MDE ensures that any potential lateral movement of the malware to other connected devices or systems is halted. This containment is essential for safeguarding sensitive company data and maintaining the integrity of the network.

Second, MDE also initiates the remediation process, which involves cleaning up the malware from the affected device. This step is vital to restore the device to a secure state, ensuring that the threat does not persist and allowing the user to return to a safe operational environment once the threat has been addressed.

In summary, this approach prioritizes immediate containment of the threat and ensures thorough remediation, helping to protect the broader enterprise from potential disruption or data loss due to malware propagation.