This is a quick blog post I wanted to make so others can read about this issue with The Division beta. A user on Reddit named "division_throwaway" posted a few videos along with information about The Division beta where cheating is quite easy to do. His/or her videos on YouTube show the in-game character having a high amount of ammo, speedhacking and changing the rank information. Hopefully Ubisoft is aware of this and fixes it before the full release of the game on PC.
Video of Infinite Ammo
Video of Speedhacking
Video of Rank Information being client-side
However, without stating anything specific on how to 'cheat' in this beta. It's scarily simple.
Everything from ammo count, level XP, Dark Zone currency, player speed are all CLIENT trusted, and take time to sync via server time. For example. Infinite ammo is possible by removing the instruction that's responsible for adding/subtracting ammo into your player structure.
Speedhacking is possible by modifying the delta time used in the game's update.
And the speedhacking is possible for said 'invisible people'. If a player that is speedhacking runs ahead of the position stated on the server, because the client trusts the position of the players, you can very well quickly take out an enemy without them seeing you and reclaim the reward/loot.
Things such as extraction times, rogue times, and respawn times are the only thing that seems to be server side.
In the full game, I highly anticipate some sort of anticheat or method preventing any kind of open handle to the application.
Source: reddit.com
Video of Infinite Ammo
Video of Speedhacking
Video of Rank Information being client-side