7 min read
Hacking Traffic Lights: The City's Invisible State Machine
Traffic lights are an OT system bound to the physical world: intersection controllers that make local decisions and network nodes that connect to a central system over NTCIP/SNMP. A map of the attack surface through default SNMP credentials, the safety chain, and Cerrudo's 2014 research.
#OT Security#NTCIP#SNMP