The company, whose business has boomed with the coronavirus lockdowns forcing more people to work from home, has transformed into a global video hangout from a business-oriented teleconferencing tool.

But it has also come under fire over privacy and security issues, and faced criticism for failing to disclose that its service was not fully end-to-end encrypted.

After a series of security failures resulted in some institutions banning the use of Zoom, the California-based company hired former chief security officer at Facebook Alex Stamos in April and rolled out major upgrades.