Twenty-five participant teams from the Ministry of Public Security, banks, information and telecommunication departments, universities and businesses took part in the rehearsal, which occurred at Whitehat.vn 

Forty percent of Vietnamese websites have weak security. 

The national online security rehearsal is an annual event organised by BKAV. This year, there were over 100 teams registering to take part, but to ensure quality of the rehearsal, only 25 teams were chosen. 

Other teams will be selected in the next rehearsal in September.