What role does a certificate authority play in online security?

[Dataqix]

https://vimeo.com/user257756083
https://pixabay.com/users/skwovet-55562074/
https://www.slideshare.net/ks2780590
https://community.fandom.com/wiki/User:Skwovet
https://independent.academia.edu/kylesmith489
https://www.dreamstime.com/ks2780590_info
https://www.goodreads.com/user/show/200555604-skwovet
https://www.kickstarter.com/profile/282249576
https://www.ted.com/profiles/51491475
https://linktr.ee/skwovet
https://unsplash.com/@skwovet