Chase Cooper | Chase's Blog

Reverse Engineering and Exploiting the Cloudedge Bell 24T Sub-GHz RF Signal Communications

Taking Advantage of Unencrypted Static ASK/OOK Payloads to Bypass Authentication and Replay/Jam Indoor Chime Triggers Using SDR.

By Chase Cooper

Posted on August 9, 2026

Overview [Read More]

SkillBit June Flash CTF Writeup

By Chase Cooper

Posted on July 15, 2026

A few weeks ago I participated in SkillBits June 2026 Flash CTF. I had work off for the evening and figured it would be a good opportunity to step away from my current research project for a short bit and do something different, not knowing the rabbit holes this would... [Read More]

Vulnerability Assessment on the CloudEdge Bell 24T Network Stack

Leveraging Insecure Communication Between the Cloud Backend, Mobile App, and the Local IoT Device via Transparent Proxy Interception to Bypass TLS and Manipulate Plaintext HTTP Communications.

By Chase Cooper

Posted on June 23, 2026

Overview I’ve been researching the security posture of the CloudEdge Bell 24T Smart Doorbell alongside some other smart video surveillance systems for almost a year now, taking it on as my first IoT vulnerability research project. It has been an incredibly rewarding experience, not just for the findings themselves, but... [Read More]