> Where is your source for this? It is entirely possible to make a secure computer system

You can’t. You don’t need source for that, just common sense.

Exploits are discovered every day, bugs happen, bad actors.

You can do the best system, shit still happen.

BTW you want a source ? Remember when the freaking CIA data got leaked ? Edward Snowden, ring a bell ?

If the cia couldn’t prevent it, I bet you can’t.