The Hacker Crackdown

Now our lecturer distributed copied diagrams of a typical LAN or "Local Area Network", which happened to be out of Co

The lecturer challenged us for solutions. I for one was utterly clueless. As far as I could figure, the Cossacks were at the gate; there were probably more disks in this single building than were seized during the entirety of Operation Sundevil.

"Inside informant," somebody said. Right. There's always the human angle, something easy to forget when contemplating the arcane recesses of high technology. Cops are skilled at getting people to talk, and computer people, given a chair and some sustained attention, will talk about their computers till their throats go raw. There's a case on record of a single question -- "How'd you do it?" -- eliciting a forty-five-minute videotaped confession from a computer criminal who not only completely incriminated himself but drew helpful diagrams.

Computer people talk. Hackers *brag.* Phone- phreaks talk *pathologically* -- why else are they stealing phone-codes, if not to natter for ten hours straight to their friends on an opposite seaboard? Computer-literate people do in fact possess an arsenal of nifty gadgets and techniques that would allow them to conceal all kinds of exotic skullduggery, and if they could only *shut up* about it, they could probably get away with all ma

Most every phone-phreak ever busted has swiftly implicated his mentors, his disciples, and his friends. Most every white-collar computer-criminal, smugly convinced that his clever scheme is bulletproof, swiftly learns otherwise when, for the first time in his life, an actual no-kidding policeman leans over, grabs the front of his shirt, looks him right in the eye and says: "All right, *asshole* -- you and me are going downtown!" All the hardware in the world will not insulate your nerves from these actual real-life sensations of terror and guilt.

Cops know ways to get from point A to point Z without thumbing through every letter in some smart-ass bad-guy's alphabet. Cops know how to cut to the chase. Cops know a lot of things other people don't know.

Hackers know a lot of things other people don't know, too. Hackers know, for instance, how to sneak into your computer through the phone-lines. But cops can show up *right on your doorstep* and carry off *you* and your computer in separate steel boxes. A cop interested in hackers can grab them and grill them. A hacker interested in cops has to depend on hearsay, underground legends, and what cops are willing to publicly reveal. And the Secret Service didn't get named "the *Secret* Service" because they blab a lot.

Some people, our lecturer informed us, were under the mistaken impression that it was "impossible" to tap a fiber-optic line. Well, he a

The tap was a classic "Goofy Prototype" -- a thumb-length rounded metal cylinder with a pair of plastic brackets on it. From one end dangled three thin black cables, each of which ended in a tiny black plastic cap. When you plucked the safety-cap off the end of a cable, you could see the glass fiber - - no thicker than a pinhole.

Our lecturer informed us that the metal cylinder was a "wavelength division multiplexer." Apparently, what one did was to cut the fiber-optic cable, insert two of the legs into the cut to complete the network again, and then read any passing data on the line by hooking up the third leg to some kind of monitor. Sounded simple enough. I wondered why nobody had thought of it before. I also wondered whether this guy's son back at the workshop had any teenage friends.

We had a break. The guy sitting next to me was wearing a giveaway baseball cap advertising the Uzi submachine gun. We had a desultory chat about the merits of Uzis. Long a favorite of the Secret Service, it seems Uzis went out of fashion with the advent of the Persian Gulf War, our Arab allies taking some offense at Americans toting Israeli weapons. Besides, I was informed by another expert, Uzis jam. The equivalent weapon of choice today is the Heckler & Koch, manufactured in Germany.

The guy with the Uzi cap was a forensic photographer. He also did a lot of photographic surveillance work in computer crime cases. He used to, that is, until the firings in Phoenix. He was now a private investigator and, with his wife, ran a photography salon specializing in weddings and portrait photos. At -- one must repeat -- a considerable rise in income.

He was still FCIC. If you were FCIC, and you needed to talk to an expert about forensic photography, well, there he was, willing and able. If he hadn't shown up, people would have missed him.

Our lecturer had raised the point that preliminary investigation of a computer system is vital before any seizure is undertaken. It's vital to understand how many machines are in there, what kinds there are, what kind of operating system they use, how many people use them, where the actual data itself is stored. To simply barge into an office demanding "all the computers" is a recipe for swift disaster.

This entails some discreet inquiries beforehand. In fact, what it entails is basically undercover work. An intelligence operation. *Spying,* not to put too fine a point on it.

In a chat after the lecture, I asked an attendee whether "trashing" might work.

I received a swift briefing on the theory and practice of "trash covers." Police "trash covers," like "mail covers" or like wiretaps, require the agreement of a judge. This obtained, the "trashing" work of cops is just like that of hackers, only more so and much better organized. So much so, I was informed, that mobsters in Phoenix make extensive use of locked garbage cans picked up by a specialty high-security trash company.

In one case, a tiger team of Arizona cops had trashed a local residence for four months. Every week they showed up on the municipal garbage truck, disguised as garbagemen, and carried the contents of the suspect cans off to a shade tree, where they combed through the garbage -- a messy task, especially considering that one of the occupants was undergoing kidney dialysis. All useful documents were cleaned, dried and examined. A discarded typewriter-ribbon was an especially valuable source of data, as its long one- strike ribbon of film contained the contents of every letter mailed out of the house. The letters were neatly retyped by a police secretary equipped with a large desk-mounted magnifying glass.

There is something weirdly disquieting about the whole subject of "trashing" -- an unsuspected and indeed rather disgusting mode of deep personal vulnerability. Things that we pass by every day, that we take utterly for granted, can be exploited with so little work. Once discovered, the knowledge of these vulnerabilities tend to spread.