Over 500.000 Zoom accounts are sold on Dark Web forums for less than a cent each and, in some cases, are given for free.
These codes are checked and compiled after testing by hackers. In particular, hackers try to log into Zoom using accounts that have occasionally been leaked from previous data breaches. Then the successful ones connections aggregated into lists that are sold to other hackers at Dark Web.
Some of these Zoom accounts are offered for free on forums so that they can be used for pranks and malicious activity. Others sell for less than a cent each.
In the following photo, you can see accounts related to American colleges, such as University of Vermont, University of Colorado, Dartmouth, Lafayette, University of Florida and many more.
Since no one knows how far this has gone leakage login credentials, it's a good idea to use unique passwords for each site you register on account.
You can also check if your email address has been leaked through data breach notification services Have I Been Pwned.