[MomoXenosaga]

That's because it was a common strategy of the KGB to set up companies in the West. "Dissidents" were often moles.

It sucks but until you somehow prove your loyalty expect to be met with suspicion. Banks don't want to carry the risk if they can avoid it.

[jhugo]

The banks are unlikely to be thinking about moles. They're just trying to minimise the risk that they accidentally deal with a sanctioned person/company or a front for one.