The only way I could ever see it being secure is if they don't actually allow customers to withdraw cryptocurrency directly, which would make it almost useless. The banks would then have full control over how, where and when you can spend those funds. That would only bolster the argument about how you need to be in control of your own funds to see any tangible benefits.
Your statement reminds me about this news :
Mastercard Wins Patent for Managing Fractional Reserves of Blockchain CurrencyAh, brilliant, so my suspicions are somewhat grounded in reality. I
do understand the beast, heh.
Yep, all things considered, I'm now more confident than before in stating that banks offering crypto "services" won't bear any resemblance to how the exchanges do it. Every conceivable safeguard will be in place to ensure that customers get nowhere near the crypto. No touchy! You'll relay your instructions to the bank, the bank will then make the transactions -
if- they approve. Wholly antithetical to the founding principles of Bitcoin.