According to Cisco, there will be more than 50 billion devices connected to network by 2020. The security and trustworthiness of these devices are of major concerns. FICS researchers play a leading role in Internet of Things (IoT) security and privacy. As part of our ongoing research, we develop comprehensive security evaluation framework dedicated for IoT and wearable devices. Systematic solutions are also developed to enhance modern cyber-physical systems. We also constantly hack into these devices and try to expose their vulnerabilities. These effort pave the way to establish more effective defense mechanisms for IOT and CPS devices.