The common refrain whenever there is a headline data breach involving the theft of personal information is that affected users should change their passwords, making sure they are a "strong" mix of unique numbers, letters and symbols.

Given the extensive number of online accounts the majority of people have, from social media to online banking to grocery shopping, it would be a herculean task to remember a different password for each one.

For this reason, security experts encourage people to use password managers, which can generate, store and automatically fill out passwords for users across all their online accounts.

"Passwords are the first line of defence when it comes to protecting our online transactions, so it’s really important to avoid using passwords that a cyber criminal will guess easily," said David Emm, security researcher at Kaspersky. "With complicated password rules to consider and multiple login details to remember, many of us struggle to remember our passwords. Using a password manager takes this responsibility from us."