Cybersecurity conferences Black Hat USA and DEF CON 28 will not be held in person this year due to the coronavirus pandemic. The conferences will both instead be transformed into completely virtualized events. DEF CON will also be transitioning to a virtual version of the event, called DEF CON Safe Mode DEF CON talks, workshops, demo labs, and training CFPs submissions will be processed on schedule as originally planned. The event organizers remain optimistic about in person events in future years: DEF CON 29 will run normally as scheduled August 5-8, 2021.
Source: https://threatpost.com/black-hat-usa-def-con-28-go-virtual/155606/