Explore the vulnerabilities of Programmable Logic Controllers (PLCs) in industrial settings through this BruCON Security Conference talk. Delve into the investigation of a well-known PLC, uncovering methodologies for discovering weaknesses and demonstrating how combining minor vulnerabilities can lead to complete device takeover. Learn about PLC communication protocols, device configuration, and the potential risks associated with SNMP enablement. Discover techniques for rebooting PLCs, manipulating memory modules, and creating modified firmware. Gain insights into the impact of these vulnerabilities on industrial control systems and the importance of securing critical infrastructure against malicious actors.