Exchanges are not reliable. Did you hear, that coinbase is about reveal clients' personal data?
So about what level of security we can talk on exchanges?

This is just a violation that contradicts the decentralization and freedom philosophy of bitcoin.
Speaking about personal data, how is Bonpay going to handle that matter?
So far, all the personal data is protected by the latest and advanced technologies. Besides, Bonpay is going to provide one more cut-through protection upcoming with the Token Sale results. It concerns Self-controlled data protection. With zero knowledge security system Bonpay got ahead in resolving technical, security and compliance issues.
Glad to know that. I doubt anybody wants their personal data would expose to third parties. It's a problem, that all banks have.