Black Hat Asia and DEF CON China security conferences have been postponed until the epidemic is contained. Organizers of Machine Learning Conference, held in Singapore, were also forced to postpone it for the same reason. The announcement comes after the Singapore Ministry of Health on February 7 raised the risk assessment DORSCON Orange, the second-highest severity status before Red. At that date, 32 cases of coronavirus infections had been recorded in the country. At this moment, there are no details about reimbursing those that may not be able to participate.
Source: https://www.bleepingcomputer.com/news/security/tech-conferences-in-asia-on-hold-due-to-coronavirus-outbreak/