You did an extremely good job at explaining what are the risks. But if everybody it in the company it is using it, maybe it is worth to have. Must be well tho

You did an extremely good job at explaining what are the risks. But if everybody it in the company it is using it, maybe it is worth to have. Must be well though of from the beginning, like proper ACL and notification of reception (so we know what messages some other people listen to) but overall it does not seems so bad. In your example, the trading desk would either need an intern to communicate the trades or some software developed ad-hoc. Similarly for the second examples. The data need to be moved from the trade to the risk analysis someway. Either custom software or some human need to do it. For the third pattern, I agree that should be backed into the EBS, but you need ACL anyway. Either you let all the people in the company see the trade or you have ACL implemented somewhere. I definitely can see the problems, but I can also see the benefits...