CA RiskMinder Administration Guide › Managing Global Configurations › Managing Global Rule Configurations › Editing Rule Definitions Using the Rule Builder › Configuring Device Velocity

Configuring Device Velocity

The Device Velocity Check rule keeps a check on the number of transactions from a device within a specified period of time. It is based on the following parameters:

• Number of Risk Evaluations per Device

  Denotes the number of transaction (M) performed by RiskMinder for a specified device, irrespective of whether the risk evaluation resulted in success or failure.

  The default value for this parameter is 10.

• Time Interval

  Denotes the time period (T) in which the number of transactions are tracked.

  The default value for this parameter is 60.

• Unit for Time Interval

  Denotes the unit in which the time period (T) is measured.

  The default value for this parameter is Minutes.

To configure the Device Velocity Check rule, perform the following steps:

1. Ensure that you are logged in as a GA.
2. Activate the Services and Server Configurations tab.
3. Under the Rules Management section on the side-bar menu, click the Rules and Scoring Management link.

   The Rules and Scoring Management page appears.

4. From the Select the Ruleset list, select the ruleset for which this configuration is applicable.

   The configuration information for the specified ruleset appears.

5. In the RULENAME column, click the Device Velocity Check link.

   The RiskFort Rule Builder page appears.

6. Specify the number of risk evaluations per device in the Greater than field.
7. Specify the time interval.

   This value denotes the maximum number of transactions (within the specified time interval) that is considered safe for a device. If the actual number of transactions within the specified time exceeds this number, then RiskMinder tracks the transaction as a risk, which results in the matching of the Device Velocity rule.

8. Select the unit for the time interval from the drop-down list.
9. Click Update to build the rule fragment.
10. Click Update at the bottom of the Rule Builder page to save the changes.

    The changes are not yet active and are not available to your end users.

11. To make the changes active, you must migrate them to production.

    See "Migrating to Production" for instructions to do so.

12. Refresh all deployed RiskMinder Server instances.

    See "Refreshing the Cache" for instructions on how to do this.