I don't really understand Bitcoins as well as I'd like. I understand that eventually there will be 21,000,000 bitcoins mined. And, I understand that each bitcoin can be subdivided into 100,000,000 satoshis. so there will one day be 2,100 Trillion satoshis in the system.
So, Is each satoshis as secure as a bitcoin? Or, I was imagining, that even though each bitcoin might be highly secure, perhaps a bitcoins individual subdivisions might not be accounted for so well. Suppose one organization had a several bitcoins, but a great many of the organizations members owned various numbers of those bitcoin's satoshis. Would they need to be extra concerned that their satoshis could somehow disappear, when they owned less than a full bitcoin?
(Does accountability begin with the satoshis, or with the bitcoin?)