Hi Team,
As in most of banking projects we document which are being downloaded or created are placed under secured directory which are encrypted with encryption solutions. PGP is one of the popularly used encryption tool and used across industry.
We can create a VBO with work with different encryption solutions like PGP, WinGPG etc
https://digitalexchange.blueprism.com/dx/entry/9648/solution/bouncy-castle---pgp-utility