Complex sentence: In 1992, the ISG introduced an MSc in Information Security, which was the first of its kind in the world: in 2014 this course received full certification from GCHQ.
Split into simpler sentences: In 1992, the ISG introduced an MSc in information security, being the first university in the world to offer a postgraduate course in the subject. In 2014 this course received full certification from GCHQ.