It was a hack attack of epic proportions. Fresh off last month’s massive password hack, there’s been another major dataset exposure. A staggering 16 billion passwords have been leaked across multiple platforms in what techsperts are calling the largest data breach in history.

One of the key risks of a data breach this big is how easily cybercriminals will be able to access multiple accounts, especially for those who reuse passwords. A survey from NordPass indicates that as many as 62% of Americans, 60% of Brits and 50% of Germans admit to reusing passwords across multiple online accounts.

Researchers have just confirmed the largest data breach ever, with 16 billion logins up for grabs. What started as a mysterious leak is now being called a blueprint for mass exploitation.