This webinar examines the revision in IEC61511-1 earlier this year to include a new clause regarding Cybersecurity and how this will impact end users. It has been recognized for sometime now that Industrial Control Systems can be susceptible to cybersecurity events, which could have potentially disastrous effects on Safety Instrumented Systems and Basic Process Control Systems. How immune a SIS or BPCS is depends upon how it was designed, its network topology and “openness” to the outside world. Compromising a SIS could result in a loss of protection, or worse still initiate unsafe or unstable process conditions.