I guess it kinda goes to show you that the only un-hackable piece of technology is your good old fashioned brain! Bring back the brain wallets!
Yes... "un-hackable"... that's why no-one ever lost funds from a brain wallet... 
https://www.deepdotweb.com/2017/06/09/bitcoin-brain-wallets-hackers-heaven/
https://bitcointalk.org/index.php?topic=1073845.0
https://www.ccn.com/researchers-describe-easy-way-crack-bitcoin-wallet-passwords/
https://www.reddit.com/r/Bitcoin/comments/1zti1p/17956_hacked_brainwallet_passwords/
https://securityaffairs.co/wordpress/44532/cyber-crime/103k-stolen-brain-wallets-attacks.html