New York Attorney General Letita James has written to the video conferencing app to ask whether its measures have been reviewed as popularity surged due to lockdowns amid the ongoing coronavirus pandemic.
A spokesperson told the BBC: "Zoom takes its users' privacy, security, and trust extremely seriously.
"During the Covid-19 pandemic, we are working around-the-clock to ensure that hospitals, universities, schools, and other businesses across the world can stay connected and operational.
"We appreciate the New York Attorney General's engagement on these issues and are happy to provide her with the requested information."
The app has had security flaws in the past, which have included allowing an attacker to remove users from meetings, send spoof messages and hijack screens.
However, Zoom has hit back at the concerns following the rise in popularity.
The company added: "Globally, 2,000 institutions ranging from the world's largest financial services companies to leading telecommunications providers, government agencies, universities, healthcare and telemedicine practices have done exhaustive security reviews of our user, network and data centre layers confidently selecting Zoom for complete deployment.
"We are in close communication with the UK Ministry of Defence and National Cyber Security Centre and are focused on providing the documentation they need."