Sophos provides ample documentation here.

1. Login to Sophos Central Website.
2. Go to Global Settings > API Token Management. Click Add Token.
   The Token will display.
3. Note the following information for later use:
   1. Get Host Name from API Access URL (part after https://).
   2. Get Authorization from API Access URL + Headers (part after Authorization:Basic).
   3. Get API Key from Headers (part between x-api-key: and Authorization Basic).

Use the account in the previous step to enable FortiSIEM access. For FortiSIEM configuration, follow the steps here.

• Define Sophos Central Credential in FortiSIEM

• Create IP Range to Credential Association and Test Connectivity

• Viewing Pull Events

Define Sophos Central Credential in FortiSIEM

Complete these steps in the FortiSIEM UI by first logging in to the FortiSIEM Supervisor node.

1. Go to the ADMIN > Setup > Credentials tab.
2. In Step 1: Enter Credentials, click New to create a Sophos Central credential.
   1. Follow the instructions in “Setting Credentials“ in the User's Guide to create a new credential.
   2. Enter these settings in the Access Method Definition dialog box and click Save:

1. Settings	Description
   Name	Enter a name for the credential
   Device Type	Sophos Central
   Access Protocol	Sophos Central API
   Authorization	Enter the Authorization created in the previous section - step 3b above.
   URI	Fill in the URI field as: gateway/siem/v1/events
   API Key	Enter the API Key created in the previous section - step 3c.
   Organization	Choose the organization if it is an MSP deployment and the same credential is to be used for multiple customers.
   Description	Description of the device.

Create IP Range to Credential Association and Test Connectivity

From the FortiSIEM Supervisor node, take the following steps (In ADMIN > Setup > Credentials).

1. In Step 2: Enter IP Range to Credential Associations, click New to create a mapping.
   1. Enter the Hostname created here - step 3a in the IP/Host Name field.
   2. Select the name of the credential created in step 2 of Define Sophos Central Credential in FortiSIEM from the Credentials drop-down list.
   3. Click Save.
2. Select the entry just created and click the Test drop-down list and select Test Connectivity without Ping. A pop up will appear and show the Test Connectivity results. If it succeeds, the credential is correct.
3. An entry will be created in ADMIN > Setup > Pull Events corresponding to this event pulling job. FortiSIEM will start to pull events from Sophos Central using the Sophos Central API.

Viewing Pull Events

To view events received via Sophos Central:

1. Go to ADMIN > Setup > Pull Events.
2. Select the Windows Defender ATP entry and click Report.

The system will take you to the ANALYTICS tab and run a query to display the events received from Sophos Central in the last 15 minutes. You can modify the time interval to get more events.