Technical Tip: How to block Web WhatsApp file uploads and downloads using Web Filter in flow-based policy
| Description | This article describes how to block Web WhatsApp file uploads and downloads using Web Filter in a flow-based policy. |
| Scope | FortiGate. |
| Solution | Create a firewall policy and enable a deep inspection profile.
Then start to upload files or images to WhatsApp to generate the logs.
Next, block those URLs using the URL Filter.
Add all these wildcards:
Then, enable the web filter profile on the firewall policy.
When trying to download a file, the download does not start, and when trying to send a file, the message 'Couldn't send this message' appears.
Check the policy blocking logs.
Note: It is important to create an object with UDP ports 80 and 443 and create a policy above this policy blocking QUIC connections.
Related articles: Technical Tip: Block WhatsApp file uploads action by using application control |





