Below is a sample alert showing that the ACS Verification failed:
If the alert link is clicked, the following information will be seen:
Below is a sample error from the MSI log:
Azure Code Sign (ACS) Verification Failed (error: 0x577). The KB for ACS is probably required.
It is recommended to upgrade the Deep Security Manager to version 20.0.737 and above. Customers who are not able to upgrade their DSM version to 20.0.737 would not be able to see the alert message for ACS requirements.
For more information, please refer to: IMPORTANT BULLETIN: Trend Micro Server and Endpoint Protection Agent Minimum Windows Version Requirements for Updated Binaries After Mid-February 2023