"Extremely hard to hack" or "Hackable only after it's retired" don't exactly roll off the tongue, but they are not synonymous with "Unhackable".
In many cases the truth is simply that its not worth the time/effort to hack it, so only the most dedicated perverts(with a positive connotation) keep trying.
I agree, but also find it funny that by that standard the DRM in the original Google video streaming product was not hacked before the service was shutdown, after about 2 years :)
To the community it was unhackable, until very recently.
It's security measures held up so long that it appeared to be unshakable. There were no obvious flaws.
In hindsight it was hackable, but keep in mind how long it took. This console has long been obsoleted.
It was unhackable while it mattered. It was hacked 5 years after it no longer mattered. And all but the effectively beta release remain unhacked even now.