The systems are based near the leading-edge of mainstream technologies and provide safety, efficiency, scalability, longevity.
They're designed to cope with the current and forseeable threat environments. In particular they're designed to keep functioning even if the rest of your IT systems are down. More here.
We're strong proponents of IT diversity and strategic partitioning of IT systems. To prevent a breach in one place speading to everywhere and everything.
In contrast to the many IT system arrangements that prioritise vendor or MSP convenience over client safety, for example.