Hi Oliver, this is a very good question.
Mercato Solutions, as a part of Probrand Group, is ISO/IEC 27001:2013 accredited. This means that all of our private and cloud data is managed in accordance with this standard. You can find out more about our ISO accreditation here.
Also, the KnowledgeKube application is hosted using Microsoft Azure. You can find out more about Azure's own security here.
I hope this helps, please don't hesitate to ask any other questions you might have about this.