Paypal's 'Global Head of Developer Evangelism' Jonathan LeBlanc is pushing implantable brain chips as a replacement for passwords, but insists that such technology must be made to fit inside "cultural norms" before it is accepted by the general public.

In a presentation called 'Kill All Passwords', LeBlanc admits that the future of authentication security is "going to get creepy" as traditional passwords are phased out due to their innumerable security flaws.

LeBlanc envisages using brain chips to measure thought patterns so that childhood memories could be invoked by the user to unlock their computer.

LeBlanc also discusses how bio-hacking companies are already using embedded NFC and RFID tags to unlock doors. In January, the BBC reported on a company in Sweden that was implanting its workers with computer chips under the skin in order for them to access the building.

"Daily ID chips" with wi-fi sensors could also be swallowed by employees to provide secure authentication, says LeBlanc.

Paypal is currently working with partners to get the ball rolling on such technology, a process LeBlanc says is part of the payment processor becoming a "thought leader" on the transition.