According to data obtained from the website "Haver I Been Pwned," more than 23 million people who were hacked used the password '123456,' followed by '123456789' (7.7 million) and 'qwerty' (3.8 million). 

Top 10 most-frequently used passwords by hack victims: 

123456 

123456789

qwerty

password

111111

12345678

abc123

1234567

password1

12345

Separate of the release, the NCSC conducted its first "UK Cyber Survey" ahead of their CYBERUK 2019 conference in Glasgow this week, which found among other things; 

Only 15% say they know a great deal about how to protect themselves from harmful activity

The most regular concern is money being stolen – with 42% feeling it likely to happen by 2021

89% use the internet to make online purchases – with 39% on a weekly basis 

One in three rely to some extent on friends and family for help on cyber security

Young people more likely to be privacy conscious and careful of what details they share online

61% of internet users check social media daily, but 21% report they never look at social media

70% always use PINs and passwords for smart phones and tablets