Yes, I have to admit that during testing, I have spotted several errors and these may cause financial losses. Because of this, I have even deleted some features which many people consider useful (such as BTC deposit/withdrawal).
Security is a key concern for a financial system. I totally agree with your point.
The Bitcoin market is filled with exactly highly intelligent people. I will definitely pay attention to every single detail.
(If you see any bugs please email me. I will definitely appreciate that!)