unsusceptible

Spy agencies (very rationally) prefer staff who are as unsusceptible to bribery as possible.

They've been unsusceptible to some of the more recent side-channel attacks, but others have affected everything from Intel to AMD to ARM.

That doesn't make them unsusceptible to biases, pressure or corruption.

For instance, US can often infuse large amounts of cash through the central bank because it's position as the global reserve renders it very unsusceptible to inflation.

Even if clearance holders are nominally supposed to remain above-board and unsusceptible, I'm willing to bet that enough data mining would allow decent targeting.

The economic damage it causes would seem to pale in compairson to the damage done by severe restrictions imposed for months/over-a-year on the entire population, including the majority who are healthy and relatively unsusceptible to it.

If you find that when you're looking for a product you only end-up with one option that meets your requirements, or perhaps even only one that only partially meets them, then you're pretty much unsusceptible to 'buy this now' pressure.

On the other hand, in the context of a "random" event like a coin flip, your belief state is very stable and unsusceptible to change with the injection of new information.