What is the name of DFI bank?

Excuse me, could you please clarify something for me? I'm trying to understand the context of a particular bank in the cryptocurrency and finance space. I've come across a reference to a bank named DFI, but I'm not entirely sure what the full name of this bank is. Could you possibly provide me with the complete name of DFI bank, or perhaps some additional information to help me identify it more accurately? Thank you in advance for your assistance.