It’s an example of how, alongside the violence that has long marked the Israel-Palestine conflict, there are often much subtler efforts by digital spies to access networks.

The emails politely ask users in fluent English to enable Microsoft Excel features that allow the code to execute.

MuddyWater is targeting government agencies, academia and the tourism industry.

While other hacking teams associated with Tehran have gained notoriety for data-wiping attacks, MuddyWater as been relentless in its spying efforts.

Meet "Bahamut," a group that has included malicious apps in the Play Store and iOS marketplace.

It's the latest example of mobile malware aiming to sneak onto user devices.