Hackers sell cheap access of Zoom 

Cybercrime forums are listing an increasing number of stolen or cracked accounts for sale of Zoom teleconferencing software. Using these credentials, miscreants could "Zoom bomb" calls by showing up uninvited, potentially record and leak the contents of calls, as well as push malicious files to meeting participants.

From a defensive standpoint, security experts say the solution involves some simple steps: Zoom meeting organizers should require strong passwords and carefully review all attendees' identity. It's no surprise that pranksters, criminals - and likely spies - are taking a much closer look at Zoom because COVID-19 has driven so many individuals to mostly stay at home.

Concerns over the security of Zoom have led some to attempt to sidestep security challenges by picking other options. The New York City school districts, the government of Taiwan and Standard Chartered Bank have all banned Zoom outright.

But the attention being paid by hackers to zoom likely extends to Microsoft Teams and Skype, which also have seen a surge in use, as have Cisco's WebEx and LogMeIn's GoToMeeting, among other services, security experts say.