Security research firm Cyble has reported a discovery of over 500,000 Zoom accounts, including login and password information, being sold on the dark web and in hacker forums.
BleepingComputer reports that these accounts are being sold for as little as a penny apiece, and in some cases are given away for free. “Some of these Zoom accounts are offered for free on hacker forums so that hackers can use them in zoom-bombing pranks and malicious activities,” writes Lawrence Abrams.
The article goes on to suggest that user account information was cultivated through past vulnerabilities in Zoom, whether due to insecure passwords used or past data breaches where compromised account passwords were never changed.
Below is a sample of a redacted list of user account emails and passwords, including accounts from members of the University of Vermont, University of Colorado, Dartmouth, Lafayette, and the University of Florida.
Image courtesy of BleepingComputer, April 2020
BleepingComputer confirmed that a number of the listed email addresses are current active Zoom accounts and that the login credentials are indeed correct.
Change your passwords. Set it to something that can’t be easily guessed, and do not use the same password on multiple systems or sites. That is the persistent message that IT departments have been telling their users, and this time is no different.
With Zoom’s overnight stardom and the sudden wide use of Zoom for both personal and business communications, now would be an ideal time for IT departments to remind their users to change their Zoom passwords at their earliest convenience.
From Zoom’s standpoint, though this does not exploit a current vulnerability, its brand is still associated with bad press around security and its product. Zoom has started to take IT security very seriously, and it would not be unreasonable for the company to implement some measure of password complexity for its user accounts, enforce a password change across the board, or to send out communication to all Zoom users asking them to change their passwords.