^ That any password is breakable with enough time?
Sure it's true, just try every combination until it works. How could that not be true?
Regarding the hardware kit I mentioned, here it is:
http:// 9 to 5 mac /2015/03/18/iphone-passcode-hack/
Fixed in 8.1.1 and the hardware explicitly targeted the 4 digit code, but that's very recent, and an implementation choice. Complex passwords are not invulnerable.