Nils T Siebel
Cyber attacks on IT systems are common and usually originate from the Internet. Building automation and control systems (BACs) are often connected to the Internet but lack strong protection against these attacks: weak and/or default passwords, non-encrypted communication and lack of protection against unauthorised changes to data and programming are widespread. In this article we discuss how BAC systems can be protected against cyber attacks. This includes an assessment of IT security features of standards like ASHRAE 135 (BACnet) and ISA/IEC-62443.
Cyber security; building automation; automation and control systems; hackers; BACnet