ISSUE

40% of reported crime in the UK now relates to fraudulent use of mobile devices, online facilities and stolen identitities; and the use and abuse of passcodes and passwords is a main point of entry for hackers.

One of the first faculties that humans develop however is a facility for recognising ~ and remembering ~ faces or distinct images which only they would recognise.

The system of 'block locks' described here provides a means to substitute vulnerable passcodes and passwords by using a more memorable system altogether.