Well, the problem with cyber offensive is that while even a minor disruption in network infrastructure in western countries will have a huge impact on both econ

Well, the problem with cyber offensive is that while even a minor disruption in network infrastructure in western countries will have a huge impact on both economy and society and could cause significant losses. Whereas even if you completely destroy networks of Islamic state I doubt it will hurt them a lot. Cyber warfare escalation is not really a smart move when your economy really needs IT infrastructure and your opponent does not (or does but to a significantly lesser degree)