Not actually related to the article, but the headline makes me think of the "Muddy Puddle Test" for crypto, which goes like this:

1) Drop your device(s) into a muddy puddle (destroying them).

2) Slip in said puddle so you hit your head. On waking up you're absolutely fine, but are entirely incapable of remembering your passwords or encryption keys.

3) Can you get your cloud data back?

If you can, then it's not actually secure.