---
title: "Delete a security group"
description: "Delete a TIR security group, and know what happens to the resources that still have it attached."
content_type: "how-to"
product: "tir-security-group"
platform: "TIR"
url: "/tir/tir-security-group/how-to/delete-a-security-group/"
topic: ["security-groups"]
---

# Delete a security group

Delete a security group you have finished with. Deleting removes it for good, and the resources that still
had it attached stop following its rules.

## Before you begin

You need a role with Delete permission on security groups. Open the group's **Associated
Services** tab to see which resources have it. To keep each of them reachable, attach another group to each one
first and [detach this one](/tir/tir-security-group/how-to/attach-or-detach-a-security-group/).

## Delete the group

1. In TIR, open your project. In the side menu, under **PLATFORM SERVICES**, select **Networking**,
   then **Security Groups**.
2. In the group's row, open the **Actions** menu and select **Delete**.
3. In **Delete Security Group**, tick "I understand and want to delete security group" with the
   name shown.
4. Select **Delete Security Group**.

The group leaves the list, and the resources that had it stop following its rules. For help with a
refused delete, see
[Troubleshooting Security Groups](/tir/tir-security-group/troubleshooting/tir-security-group/).