According to surveys, the average English-speaking consumer maintains around 27 online accounts. Memorizing 27 unique, cryptographically secure passwords is nearly impossible for a person one could reasonably call “average”. As a result, the average person tends to reuse passwords, which means that a single password (or its simple variations) can be used to protect multiple online accounts and services. The same passwords are very likely to be chosen to protect access to offline resources such as encrypted archives and documents. In fact, several independent researches published between 2012 and 2016 suggest that between 59 and 61 per cent of consumers reuse passwords.
Considering how consistent the numbers are between multiple researches carried out over the course of four years, we can safely assume that around 60% of consumers reuse their passwords. How can this data help us break passwords, and how did we arrive to the value of 70% in the title? Read along to find out! (more…)