zoom setting us -- its daily uses has exploded from 10 mimiion to 200 million.. is warning cyber atattackers arare hacking in to calls, posting for vanity and offensive images. -- profanities and offensive images. i am joined by our reporter. what is going on here? >> as you u said, zoom is one of ththe hardest -- hottest apps ad it helps us stay connected at aa time when many countries are restricting g or banning s socil contact.t. until the app i is being usesedm checking in with grandparents to business meetings because a lot of wororking frorom home like im for the teteaches -- teachers teaching classsses. it seems likike people witith ls noble intetentionsns have discsd the app asas well. in the best of cases it appears they are hacking i into other people's video chats. for sosome of the reasons likeka prank c call to keep confusion d have f. butt there have been numerous reports of abusiveve incidents likeke black people whose video chats have been bombarded with racist slurs. one company inin berlin had its meeting cut short a after the vivideoconference