If there is one thing Israel is known for, it's their secret service. I'd even go and say the Mossad is miles ahead of the NSA... the NSA goes for the brute force approach: grab every piece of data they can get their hold on with enormous resources and attempt to make sense of the pile later.
The Mossad is orders of magnitude more resource-efficient, they go for surgical strikes against whomever they are targeting. And they don't care at all if their target is an allied state, a neutral state or an enemy state.