And you would be hard-pressed to find anyone outside of ISIS and Al-Quaida more fanatical than Mossad and its crazy Zionist ilk. The thought of them having cyber-weapons is scary. But much more scary is the thought that we actually gave those religious crazies nuclear weapons.
Huh? The Mossad, based on their past performance and actions, is a very level-headed, pragmatic secret service. The Zionist agenda is not their scope, albeit one could make the argument that any security apparatus, including the army or air force that ensures the survival of Israel, also indirectly serves the agenda of Zionism, to some extent.
That said, I am also not sure why you would lump Zionism and extremism together. Zionism simply means, in its broadest definition, bringing Jews to live in Israel.
In any case, comparing ISIS to practically any secret service in existence, is quite dishonest. ISIS is an organization that has institutionalized the torture and enslavement of girls, the torture and decapitation (sometimes burning alive) of non-Muslims, and systematic genocide of non-Muslim civilians.