Zoom will soon follow the rest of the silicon valley companies in finding ways to invest in military technology, use lobbying power to earn big dollar government contracts, and monetize its access to biometric data. Unless it has already done that.
— Thomas Sowell
Plus, as noted, Zoom has lied repeatedly about what they do, how they do it, where their data goes, etc., and every time has somehow escaped any real repercussions. They are not trustworthy, regardless of certification.