Hi there!

Exactly what we collect is stated in our Privacy Policy:

https://www.malwarebytes.com/privacy/policy-for-browser-guard/

To opt out:
* From the Browser Guard UI navigate to the Support page
* Untick the box that reads "Send anonymous telemetry to Malwarebytes"
* Telemetry collection will be disabled

If you are seeing otherwise, please get in touch with our support team at support.malwarebytes.com.