Global Records
Hey, im every time wondering, in Portal 2 Global Records, (For example, the level where you get the Blue Portal Gun), how can you shoot "-55,554" Portals 
Lio has this record, or how you can solve the chamber in udner 6 seconds? (Like in the other Record),
Or is there a security leak (Dont know how it is named in English) to cheat?
Greets,
That looks like a glitch in their servers. Perhaps someone used a hack to shoot so many portals that a sint32 overflowed?
These are mostly hackers. I haven't seen a lot recently, but it should be pretty clear who has legit times/portals by using common sense or looking for a video. The world records are usually by Jetwash_787, Lemon, or Pocky. Any times under those are likely cheated.
I'm aware of a certain cheat that currently works which makes it overly easy to cheat the maps. Hopefully this'll be fixed soonish 
I can't thank you enough for not saying it
Thats sad that there are People who cheat on the Online Rekords, :/