A massive database of nearly 773 million unique email addresses and more than 21 million unique passwords was recently posted on an online hacking forum, in what could be the hugest data breach ever. The set of email addresses and passwords totaled to 2,692,818,238 rows from thousands of different sources. This was a mega compilation, coming from many breaches.
That means your email or password or both, could be hanging somewhere and might be used for bad reasons. For instance, with the emails and passwords out there someone could try to login into your website, email account or database. With the aid of softwares that tries thousands of passwords and email combos a minute, that could be an easy task for them.
By now the breached data has circulated in the dark web and might get messy for people who use the same password everywhere. So either way you might consider changing your passwords to stronger ones and using different ones for different platforms.