Farhad Manjoo
The computer virus turns 25
Malware hits the quarter-century mark, and scientists say destructive code will be around for a lot longer still.
The computer virus turns 25 years old this year. It’s been a rocky quarter-century, but according to Richard Ford and Eugene Spafford, two computer scientists writing in this week’s issue of the journal Science, viruses can look forward to a long, fruitful life. The researchers say that in today’s hyper-connected world, when everything’s got a chip in it and is running software, stopping malware is basically an impossible task. (Their article is not online.)
The computer virus conception story begins in 1981, when a tech-savvy 9th grader named Richard Skrenta got an Apple II for Christmas. Over the following few months he began cooking up ways to trick his friends using the machine. “I had been playing jokes on schoolmates by altering copies of pirated games to self-destruct after a number of plays,” Skrenta once told the tech news site Security Focus. “I’d give out a new game, they’d get hooked, but then the game would stop working with a snickering comment from me on the screen.”
When his friends realized his tricky ways, they banned Skrenta from their machines. And that’s when he had an epiphany: He could put his code on the school’s computer, and rig it to copy itself onto floppy disks that students used on the system. Thus was born Elk Cloner, the world’s first computer virus to spread in the wild. The virus didn’t do much damage; it infected the Apple II’s OS and copied itself to other floppies, and every so often would display a tittering message on the screen:
Elk Cloner: The program with a personality
It will get on all your disks
It will infiltrate your chips
Yes it’s Cloner!
It will stick to you like glue
It will modify RAM too
Send in the Cloner!
Ford and Spafford note that in the years since, as viruses spread to other computer platforms and throughout the world, wreaking billions in damages, there has been little progress in fighting them. There is a scientific reason for this: “Building a computer program that can tell with absolute certainty whether any other program contains a virus is equivalent to a famous computer science conundrum called the ‘halting problem,’” they write. The halting problem concerns the difficulty of spotting whether a program will terminate or continue to run forever. “It has no solution in the general case and has no approximate solution for our current computing environments without also generating too many false results,” they write.
Ford and Spafford also take on the idea that Microsoft is to blame for our current virus ills. Certainly MS has neglected to secure Windows, but any platform that obtains ubiquity will become a target for attack, they note. Some say the solution is to have a diverse computing environment — if the world ran all kinds of different platforms, rather than a Windows monoculture, viruses would spread much less slowly. But diversity, Ford and Spafford point out, creates its own problems — if the Mac, Linux and Windows all had roughly equal share, you’d need anti-virus teams working to protect all three platforms, any one of which could serve as a weak point for wider network destruction. Platform diversity, that is, increases the “attack surface,” they write.
Worse still is the potential for completely computer-free computer viruses. They point to a chain e-mail message that counseled people to delete a particular file from their computer to keep it secure. “The file they deleted was critical to the system,” it turned out. The “virus” that caused its deletion was “executing” only in people’s minds. And you can’t get a virus checker for the brain.
So right: Happy birthday, computer virus. Many happy returns!
The thinking man’s action hero
Using paper clips, chewing gum, chocolate and down-home ingenuity, MacGyver always saved the day. Let's bring him back -- and give him a girl!
It isn’t necessary to explain how, in the pilot episode of “MacGyver,” our mulleted, Midwestern hero gets himself trapped inside a top-secret research bunker overflowing with sulfuric acid. Suffice it to say, he needs to find a way out, and probably soon (because government agents are fixing to fire a missile at the bunker to prevent the acid from spilling into a nearby aquifer). Plus, he has to save the people he has found inside (among them a gun-wielding climate scientist who wants destroy the bunker in an effort to set back research into an ozone-layer-ruining weapon of mass destruction). Fortunately, MacGyver has a few chocolate bars, a scrap of sodium metal, a cold capsule, a pair of binoculars and cigarettes.
Continue Reading CloseGoodbye to Machinist
Yo, I'm out.

Today much of the tech world is sad that the iPhone 3G’s launch is going so miserably. But I’m sad that it’s my last day at Salon.
I’ve accepted a job at Slate, where, starting next week, I’ll be writing a twice-weekly technology column. Machinist will go on a break for a week, after which a guest blogger will bring you the latest tech dish.
Continue Reading Close“True Enough” at Google, and in San Francisco
A YouTubey presentation of my book.
As I mentioned in the comments yesterday, I’m getting ready to depart this space; I’ll have a fuller explanation tomorrow, sometime before or after I get in line to buy the new iPhone.
In the meantime, I thought I’d add a note about one of the more fun events related to my book’s release — the opportunity I had, in May, to speak at Google’s headquarters in Mountain View.
Continue Reading CloseThe iPhone 3G reviews are in: It’s pretty good
But battery life suffers, and the GPS isn't as great as you hoped.
Walt Mossberg (WSJ), David Pogue (NYT) and Edward Baig (USA Today) have been using the new iPhone 3G for a couple of weeks now, and today they all dish on their experiences.
Continue Reading CloseScary! YouTube ordered to hand your viewing history to Viacom
But there's a silver lining to one of the most bone-headed legal decisions in recent times.
Update: This post has been updated with comments from Viacom.
In the fall of 1987, a freelance reporter named Michael Dolan learned that judge Robert Bork kept an account at Potomac Video, a D.C. rental shop. This was at the height of the contentious and ultimately failed Senate confirmation hearings for Bork’s nomination to the Supreme Court — so naturally, Dolan thought there was a story here, and he went to work on getting a peek at Bork’s video rental history.
Continue Reading ClosePage 1 of 143 in Farhad Manjoo
