The problem I have with this (and I don't know whether it's just me, or if it's more common) is that I'm now innately distrustful of any third party service that wants to connect to of my banking or bank-like accounts and services.<p>I don't know these guys, I don't know how secure they are, and more importantly, I'm fairly sure PayPal would disown any responsibility if the data they would be able to access was used for nefarious purposes.