NEW YORK (AP) -- Facebook's billionaire CEO Mark Zuckerberg calls himself a "hacker".
For most people, that word means something malicious -- shady criminals who listen in on private voicemails, or anonymous villains who cripple websites and break into email accounts.
For Facebook, though, "hacker" means something different. It's an ideal that permeates the company's culture. It explains the push to try new ideas (even if they fail), and to promote new products quickly (even if they're imperfect). The hacker approach has made Facebook one of the world's most valuable Internet companies.
Hackers, "believe that something can always be better, and that nothing is ever complete," Zuckerberg explains. "They just have to go fix it -- often in the face of people who say it's impossible or are content with the status quo."
Zuckerberg penned those words in a 479-word essay called "The Hacker Way", which he included in the document the company filed with government regulators about its plans for an initial public offering. The company is seeking $5 billion from investors in a deal that could value Facebook at as much as $100 billion.
The 27-year-old, who has a $28.4 billion stake in the stock deal, uses the h-word 12 times in the essay; "shareholder" appears just once. Should Zuckerberg have left those references out of his IPO manifesto, knowing full-well it could scare off potential investors? He could easily have described Facebook as "nimble" or "agile" instead.
"Symbolically it doesn't bode well to Facebook and to potential investors," said Robert D'Ovidio, an associate professor of criminal justice at Drexel University in Philadelphia who studies computer crime. "I think it shows maybe an immaturity on his part. He should definitely know better."
By using the word, Zuckerberg is also trying to reclaim it. To him, Steve Jobs and the founders of many of the world's biggest technology companies were hackers.
"The word 'hacker' has an unfairly negative connotation from being portrayed in the media as people who break into computers," Zuckerberg writes. "In reality, hacking just means building something quickly or testing the boundaries of what can be done."
To be fair, the meaning has always been complicated. Bad hackers destroy things with evil intentions. They break into the voicemails of crime victims and celebrities in search of a hot news story. They breach security systems to steal credit card data. Just this week, members of the loose-knit group Anonymous hacked into law enforcement websites around the world and gained access to information about government informants and other sensitive information.
Good hackers break things, too, sometimes. But they do it in the name of innovation. They call themselves "white hat" hackers to counter the criminal "black hats." Often, they're hired to expose security vulnerabilities at big corporations. Kevin Mitnick, who was convicted and sent to prison in the 1990s for computer hacking, now works as a security consultant. It's the flip side of his past life, when he spent years stealing secrets from some of the world's largest corporations.
"I break into computers to find holes before the bad guys do," he says.
To Mitnick, Zuckerberg's "Hacker Way" is yet another definition of hacking. That is, finding clever ways to fix problems.
It can also mean identifying a new use for something old.
Nathan Hamblen, who works for the website Meetup.com, said the best hacks are those that do something unexpected, something surprising that no one else has thought of.
The term "hacking" dates back more than half a century, when geeks at the Massachusetts Institute of Technology were tweaking telephone systems and computers.
"MIT was the Mesopotamia of hacking. That's where hacking culture began," says Steven Levy, the Wired Magazine writer who authored the 1984 book "Hackers: Heroes of the Computer Revolution."
The small community of hackers in the 1950s and '60s judged one another on their creative and technical abilities, and wore the term as a badge of honor, says Levy, in much the same way that Zuckerberg does today.
"They were the ones who did what you weren't supposed to do on a computer," Levy explains.
Some were pranksters, too. In the 1970s, before they founded Apple, Steve Jobs and his buddy Steve Wozniak figured out how to break into telephone systems and make free phone calls. In one infamous prank, the two Steves dialed up the Vatican to find out who would pick up.
"Wozniak pretended to be Henry Kissinger wanting to speak to the pope. 'Ve are at de summit meeting in Moscow, and we need to talk to the pope,' Woz intoned. He was told that it was 5:30 a.m. and the pope was sleeping," writes Walter Isaacson in his recent biography of Jobs.
It wasn't until the 1980s and '90s that hacking took a bad turn. Some blame Robert Morris, a computer science student who discovered a vulnerability in the Internet's inner workings and unleashed the world's first computer worm in 1988.
"He essentially brought the Internet to a grinding halt," said D'Ovidio, the criminal justice professor. Morris was the first person charged under the federal Computer Fraud and Abuse Act that had been enacted two years earlier.
Then came movies like 1983's "War Games," which also fueled the public's fear of hacking. In the film, a hacker unwittingly comes close to starting the next World War, thinking it's all a computer game.
"It happened because of Hollywood and because there was no other word out there," said Andrew Howard, 28, a research scientist at the Georgia Tech Research Institute. "Hacker is a cool word, right? It's a neat-sounding word."
The '80s and '90s were also at time when computers spread from geek circles to office cubicles and home desktops. They were becoming mainstream. But they were still mysterious. Most people wondered: "How do they work? Is someone going to break into them?"
Zuckerberg's hacker manifesto is a nod to Levy, who codified "The Hacker Ethic" in his book about the subculture. Among the principles: "hackers should be judged by their hacking" and "always yield to the hands-on imperative."
The hands-on imperative is important to Facebook. Zuckerberg still spends hours writing computer code, even though he has hired hundreds of engineers.
That ethos helped Zuckerberg's social network to prosper. As the once mighty MySpace stopped innovating, its users flocked to the cleaner, crisper, always-changing Facebook. News Corp. gave up on MySpace and sold it for $35 million last June. Meanwhile, Facebook's user base ballooned to 845 million, even as the website has gone through changes and redesigns that have angered members and privacy advocates.
Zuckerberg and others may yet be able to clean up the term. Meetup's Hamblen thinks it's already happening.
"People aren't as afraid of technology, which was driving the fear of hackers," he says. "It was someone doing something with software that you don't understand. As people become more comfortable with technology in general, then hacking becomes a way of seeing it as using it in a clever way."
Technology companies, from the tiniest startups to those such as Facebook and online game maker Zynga, take the hacker ethic to heart. They host regular "hackathons," where engineers pull caffeine-fueled all-nighters writing computer code, usually working together on projects that are not part of their day-to-day jobs. Some of Facebook's biggest features, including chat, video and the Timeline, came out of these hackathons, as Zuckerberg explained in the filing.
"Hackers believe that the best idea and implementation should always win -- not the person who is best at lobbying for an idea or the person who manages the most people," he writes.
This is the ethic that can lift fresh-faced college grads (or dropouts) to the highest echelons of the technology elite, or at least to a good job.
Cadir Lee, the chief technology officer at the company behind the biggest games on Facebook, said he "absolutely" refers to himself as a hacker. At Zynga, the hacker way means agility, the idea that "done is better than something that is theoretically better." It's not the end of the world, say, if a game isn't perfect when players first see it, or if it has a bug that needs to be fixed. Think of it as live TV.
"The charm of 'Saturday Night Live' is that every once in a while you see a boom mic, or they forget their lines or crack up," says Lee. "But it's better to get something out there and entertain than to not have any show."