We all appreciate open source wallets, they are the best around but have we ever thought that being closed source is security? If Binance Trust wallet could be a closed source maybe they did this because they don't want malicious people to find out how they run things which could make their wallet become a target?

If you can't see how things are running (coding) wouldn't that make it harder to attack such code or network?

open source says > see this is how we run things, we are transparent and we have nothing to hide

Closed source says > we don't want you to see how we run the codes, you can target us or something