The security part of things is obviously a really important feature that encourages the use of Bitcoin, However, if we're being honest with ourselves, this doesn't appear to be top notch and it is due largely to the fact that our transactions can be monitored without any stress which could lead to targeting of wallets by hackers. I believe this is where privacy coins like Monero, ZCash and moreso Veil (has no transaction history) come into the equation.