I agree... Business uses video conferencing thousands of times a day without this happening....
But it is happening to schools. And I know of some churches that it has happened to also.
At least two other Broward County classes have been hijacked since the school year started Aug. 19. A masked man joined an online class at West Broward High School during the first week of classes and went on a disturbing, racist video rant. A few days later, another intruder posted obscene language in a fifth grade virtual class at Parkside Elementary School.