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The Slack integration posts security alerts to a Slack channel through an incoming webhook. It is outbound only: OASM sends events to Slack, and never reads your Slack workspace.

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Prerequisites

  • A Slack workspace where you can install apps. If your workspace restricts app installation, ask an admin to approve the OASM app first.
  • Permission to create an app and add an incoming webhook.
  • A channel to receive alerts.

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Create an incoming webhook

1

Open the Slack app dashboard

Go to api.slack.com/apps and select Create New App.
2

Create the app

Choose From scratch, enter a name such as OASM Alerts, select your workspace, and create the app.
3

Enable incoming webhooks

In the sidebar, open Incoming Webhooks and turn the feature on.
4

Add a webhook to your workspace

Select Add New Webhook to Workspace, choose the channel that should receive alerts, and allow access.
5

Copy the webhook URL

Copy the generated URL. It starts with https://hooks.slack.com/services/.
Treat the webhook URL as a credential. Anyone who has it can post to the channel. If it leaks, delete the webhook in Slack and connect a new one.

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Connect Slack

1

Open the Applications tab

In the console sidebar, open Integrations and select the Applications tab.
2

Open Slack

Select the Slack card.
3

Enter a name and webhook URL

Enter an Integration name, then paste the Webhook URL from Slack.
4

Set a bot username (optional)

Enter a Bot Username to control how the sender appears in Slack. If you leave it blank, Slack uses the name set on the webhook.
5

Choose events

Use the Event and Severity switches to control what OASM sends. See What notification integrations send.
6

Connect

Select Connect. OASM posts a welcome message to confirm the webhook works.

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Test

Open the integration in the Connected tab and select Test Integration. A test message appears in the Slack channel. If nothing arrives, confirm the webhook is still active in Slack and that the channel still exists.

Notifications

See every event the platform produces

Integrations overview

Learn how events, secrets, and connections work

Telegram

Send alerts to Telegram instead of Slack