Regarding the asset infos. I read in asicminerthread that issuer can get a full list of shareholders every 5 minutes. That would be a good protection because the issuer than wont have the problem they had with glbse after closing.
Another solution for the asset info could be that a daily, hourly or whatever backup including the asset- and bitcoin-related tables. No passwords and so on. They only would get a zipped file containing sql-statements that can create the tables and fill them with the data. So all shareholders would have the data about the issuer, shareholders, user money and so on. Then in any case it could be reestablished who owned what.
Maybe only shareholders with shares more than 10% should get such backup to protect the users against spammailattacks or similar. But data privacy is another thing to think about. Spreading the emails of all users is a risk in itself.
I think if you dont let much btc lay there and you know that your shares are known more than one person that you trust the risk would be relatively low. (Of course, when an exchange is created only to scam there would be ways to scam. For example sell shares that arent official, sell shares from users and show them they still have them or something. This way one could create more btc than the userbtc stored at the server so that scamming makes more sense. But it looks this can only be prevented when you trust the shareholders of the exchange, especially the boss.)
Thanks!
Sebastian
I think the current emails every 12 hours of the shareholder lists accomplish most of what we need to protect the issuers and the shareholders. It's gravy that the asset issuers can get their lists more frequently from the API. Asset holders also can get their portfolio from the API at regular intervals if they wish.
The remaining piece of data to protect is the code and data necessary to operate the exchange, which is needed for the shareholders of BTC Trading Corp to protect their investment. This I suspect we'll end up with once we get a shareholder with significant stake in the company. (greater than 25% is about where my comfort level is depending on the person.)
Cheers.