The Hackaton is a melee weapon available in PAYDAY 2. Previously a timed exclusive for Nintendo Switch versions of PAYDAY 2, it was added alongside its owner on Day 1 of operation ICEBREAKER on August 13th, 2018. It is available to all players at reputation 20.
If a player wishes for more knockdown, use Martial Arts Aced.
It is based on the ASP 21-inch expandable baton. The "click" sound of the baton extending can be heard when charging or performing a simple melee attack, though charging the attack also plays the sound of the weapon collapsing back in.
Turning FOV to maximum reveals that the baton clips through the heister's clenched fist.
The Hackaton is possibly a reference to the signature melee weapon of Aiden Pearce, the protagonist of Watch_Dogs. Like Joy, Aiden is also a hacker who uses a baton as a melee weapon.