Reverse Engineering My Coway Air Purifier to Ditch the Cloud
Summary
The piece examines reverse-engineering a Coway Airmega IoT purifier to ditch the cloud, detailing MITM-based traffic interception, root CA manipulation, and Bluetooth provisioning. It highlights security risks in IoT devices, including weak certificate handling and cloud dependency, and discusses how local control via Home Assistant can improve security and resilience for SMB setups. The piece also touches on ethical considerations and potential ways to secure such devices.