As organizations move to remote work during the COVID-19 crisis, online communications have become essential. Online audio, web and video conferencing tool usage have increased 400% in only one month, according to AT&T. This new popularity for virtual meetings has also seen a multitude of security exploitations on popular video conferencing sites like Zoom.
On April 14, 2020, over 500,000 Zoom account credentials were found for sale on the Dark Web. The information available for purchase include the user’s email address, password, personal meeting URL, and their Zoom Host Key — all being sold for less than a penny each. In some cases, the account credentials were being offered for free. The account details were obtained through credential stuffing attacks, where cyberthieves use emails and passwords previously exposed in other, non-related data breaches, to attempt access into other sites.