Unless the application has true end to end encryption with the proper encryption cipher, proper key exchange cipher, zero knowledge server and perfect forward secrecy, then most probably your conversations & data are compromised and in the hands of various intelligence agencies in the world.
I would STOP using unsecure conference calling and collaboration tools ASAP. The damage done during this pandemic period might be tremendous & the agencies and enterprises might never recover from the data theft and intellectual property exfiltration.
Our Helix SDK allows software manufacturers to achieve just that: the best & unmatched data & communications protection with true device to device multi layer encryption, P/FFS, quantum immunity & more.
BLAKFX is preparing a list of good cyber hygiene procedure and products you can use today to remain cyber resilient even when your entire communication & IP is protected by the $30 firewall your ISP put in your WiFi router.