Sadly that is not the only concern, when companies outsource like Orange to cheaper climates http://telecomtv.com/comspace_newsDetail.aspx?n=47495&id=e93...
Then they also expose the potentual for questionable employee's. Also such outsoureced locations have less defined data protection laws and regulations than the customer base they serve.
So say what you like but I'd trust the French goverment not to sell on my bank details, pass my phone number onto a scammers list and PPI spammers etc etc.
I used to be with Orange msyelf, but left for various related reasons that also entailed changing bank account numbers as well.