This, and the fact that a lot of organisations use data-sources which are so exclusive and expensive that they dwarf Maltego, so nobody is concerned with the co

This, and the fact that a lot of organisations use data-sources which are so exclusive and expensive that they dwarf Maltego, so nobody is concerned with the cost of a Maltego license. Other shops will have their own bespoke versions of a Maltego-like tool, but yeah, nothing in the Open Source. MISP probably comes closes to having some of the features.