Fat sets out the premise for how hacking the casino will work:
"We're not starting until the Luck sails tomorrow, and the security system adapts and reacts orders of magnitude too fast for me to have any chance of helping. It's all up to the crawlers, ghosts, mimics and spikers I've collected and built over the last month. I just plug them in and push execute.
And then fourteen pages later,
The next two days were a sleep-deprived blur of activity as First alternated between the churn of drilling through firewalls without setting off all sorts of alarms and deadfalls and making the rounds on the restaurants and on the gaming floors so she was seen adequately enough not to arouse suspicion.
So she just had to push execute... and then be actively involved with drilling through firewalls - when the system adapts and reacts orders of magnitude too fast for her to have any chance of helping? Fourteen pages to forget the system he'd set up. Furthermore, he's described the casino as something akin to a large country in size. There is literally nobody paying enough attention to First to know whether she's being seen out and about on the casino floors and to notice her if she's missing. This is a completely unnecessary complication that has no impact on the plot and only serves to undermine the setting that Fat has built.
So, that inconsistency set firmly in place, we flash back to Fat's bizarre world of hacker-etsy, where all those criminal computer whizzes put their illegal programs out for purchase to the general populace. It still is absolute cringe.
With a press of the button, he unleashed a full-scale electronic assault. The battle played out at the speed of light, except inside a handful of quantum processing nodes, where it played out even faster. Just shy of two million credits' worth of the finest villains Junction's /backnet/ could program went to war against the best security system any amount of money could buy.
But the hackers on Junktion had several advantages. First, they were cutting-edge creatives who, like starving artists everywhere, were willing to work for pennies for exposure and to build their portfolios chasing a huge payday down the road.
Here we start with a big problem with Fat's world building. Junktion is a large space station, but it's never shown to be anything more than that. There's no industry, no agriculture, nothing but a bunch of people living there, and ships popping in and out. And yet, somehow, it's also big enough to have it's own population of super-rich partiers who the repo crew can anonymously interact with to get invites to the upper-echelons of galactic society, and big enough to have a large enough population of hackers that it can include savants who can outperform the best computer technicians unlimited money can pay for. I know Fat has never heard of the Pareto distribution, and wouldn't understand why people with extreme skill are logarithmically harder to find than your average Joe, but you would think that he could just take the basic idea of a single space station being smaller than the entire rest of the populated galaxy and consider that maybe he should extend the search for the best code beyond the walls of his floating trash heap. The internet exists, there's no reason why First could only buy her hacks from her hometown...
The bigger issue, though, comes from the whole concept here. Criminals are willing to work for exposure? So... you're going to commit a crime, and then leave your review letting other customers (and the damn police) know exactly which crimes this criminal was an accessory to? And, you know, especially the really big ones where the victims of said crimes might have the motive and means to exact both legal and illegal revenge? It seems like the best way to have Guido show up and your house and make sure neither you nor your descendants will ever be coding again. And additionally, the cheap, starving artists are going to be the ones who haven't already gotten their top notch haxor skillz up to top level - because if they had, they would be able to sell their programs for more money, and they wouldn't be cheap any more! Good God, no wonder Fat hates capitalism so much. He views himself as the writer equivalent of his little hackers, and thinks that he's automatically better than, say, Brandon Sanderson, because he sells fewer books and is more passionate and creative because of his lack of success. Clearly, Sanderson is just coasting along on the early success of his first few books, and has long since let his writing go to crap. It is a travesty that Sanderson has the book deals and the sales and that Fat does not. IT'S THE UNIVERSE THAT IS WRONG, NOT PAT!
...And since First is a genius-level super-hacker, how does her piece-of-cake plan go?
With a keystroke, First injected her customized probability algorithm that would turn her perfect pearl black.
Except...it didn't. Instead, it started glowing. First like a night-light, then like a lighthouse.
"What the fuck?" First's fingers raced across the keyboard and the virtual interface in a desperate attempt to ascertain what the hell was going on. "No. No, no, no,no..."
"What's wrong?" Hashin said.
"I'm...I don't know," First said. "That's not possible."
"What's not possible?" Loritt demanded.
First swallowed her pride, hard, before working up the gumption to answer. "Something went wrong in the execution file. I flipped a negative to a positive, forgot to carry a one, divided by zero, I don't know right now."
So First outdoes Office Space by not only getting the decimal in the wrong place, but by flipping the sign of the whole operation. Instead of everyone losing badly, everyone is now immediately going to go on a permanent winning streak! Because genius-level hacking.