DedSec Vietnam Knife is a melee weapon in Watch Dogs: Viethacking is one of Tran Thu Duong's primary melee weapon, the other is DedSec Vietnam Hatchet. Both are given to Tran Thu Duong by a DedSec Vietnam Member when he has respected him.
- In some occasions, when Tran Thu Duong performs a stealth kill on a enemy with the knife. It may trigger him stealthy grab their throats and the slices their throats with the knife. This stealth animation is similar to GTA SA's stealth knife kill animation