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Detect security risks and identify anomalies by correlating signals across different sources.

Designed to empower you with enhanced detection capabilities, Correlated Intelligence correlates suspicious signals from various sources to detect security risks and anomalies.
Note
Note
Currently, Correlated Intelligence collects signals from Advance Spam Protection, Malware Scanning, and Web Reputation.
One key advantage of Correlated Intelligence is its capability to see and analyze signals from multiple sources to identify security risks that may go unnoticed by a single security filter. This multi-source approach adds an extra layer of protection to detect potential threats.
Another highlight of Correlated Intelligence is its ability to alert you of anomalies, which shows one or multiple signals that deviate from normal behaviors. Anomalies may not necessarily indicate a security risk, but are unusual enough to warrant attention. With this feature, you can have a more comprehensive view of your security landscape.
Correlated Intelligence operates by first gathering signals from various security filters and then matching the signals against the predefined or user-defined rules. The aim of this process is to identify any matches that could indicate a security risk or anomaly, providing a more thorough and nuanced analysis of potential security threats.
Cloud App Security comes with a set of predefined correlation rules and detection signals to detect Trend Micro specified security risks and anomalies. You can also define custom detection signals that are unique and critical to your environment, and then incorporate them into custom correlation rules. This provides you with flexibility of configuring Correlated Intelligence policies that meet your actual needs.
Note
Note
Correlated Intelligence is currently available for Exchange Online.
Related information

Configuring Correlated Intelligence

Enable detection of security risks and anomalies through correlation of signals across different sources and specify the action to apply to any match.

Procedure

  1. Select Correlated Intelligence.
    By default, this security filter is enabled with the following settings:
    • The action for security risk detection is set to Quarantine.
    • All pre-defined rules is selected for anomaly detection. This enforces all existing and future predefined correlation rules to automatically detect anomalies.
    You can work with the default settings or configure the settings to meet your requirements.
  2. Configure Action settings for emails detected as security risks.
    For details about the actions, see Actions available for different services.
  3. Turn on notification for Cloud App Security to send notification emails upon security risk detection.
  4. Determine to enforce all or partial predefined correlation rules to detect anomalies.
    • All pre-defined rules
      This option is automatically selected when you enable the Correlated Intelligence toggle.
      Trend Micro classifies its predefined correlation rules for anomaly detection into three aggressive levels: Moderate, Aggressive, and Extra aggressive. For details about these rules and what scenarios that rules of each aggressive level are suitable for, see Viewing correlation rules and detection signals.
      1. Click the digit next to each aggressive level to view the associated predefined rules.
      2. Select an action for anomaly detection of each threat type under each aggressive level.
        If you do not want to enforce rules of a certain aggressive level to a certain threat type, select Pass without logging as the action.
      3. If you want to exclude certain predefined rules during anomaly detection, select the rules in the Exceptions area.
    • Specified pre-defined rules
      Select one or multiple rules and then select an action for each rule.
    For details about the actions, see Actions available for different services.
  5. Turn on notification for Cloud App Security to send notification emails upon anomaly detection.
  6. Select one or multiple custom correlation rules, and then select an action for each rule.
    In addition to the correlation rules predefined by Trend Micro, you can add custom correlation rules to accommodate detection requirements in your environment. For details, see Adding a custom correlation rule.
  7. Turn on notification for Cloud App Security to send notification emails upon anomaly detection.
  8. Configure Notification settings.
    Notify administrator
    1. Specify the administrators to notify by selecting a recipient group or specifying individual recipients. You can click Manage recipient groups to edit the members in a group or add more groups.
    2. Specify message details to notify administrators that Cloud App Security detected a security risk and took action on an email message, attachment, or file.
    3. Set the notification threshold which limits the number of notification messages to send. Threshold settings include:
      • Send consolidated notifications periodically: Cloud App Security sends an email message that consolidates all the notifications for a period of time. Specify the period of time by typing a number in the box and selecting hour(s) or day(s).
      • Send consolidated notifications by occurrences: Cloud App Security sends an email message that consolidates notifications for a set number of filtering actions. Specify the number of virus/malware occurrences by typing a number in the box.
      • Send individual notifications: Cloud App Security sends an email message notification every time Cloud App Security performs a filtering action.
    Notify User
    Specify message details that notify recipients that Cloud App Security detected a security risk and took action on their email message or attachment.
  9. Click Save.
    You can check the detection results and learn about the reasons behind the detections in the Operations → Correlated Intelligence screen.