from:
http://www.aci.net/kalliste/
-----
Hacking for Jesus


Hole in Slot Machine Software Creates Ruckus


Normally we only use that hole to pay off politicians.

EDMONTON, Alberta -- WMS Gaming of Chicago is suing an Edmonton man for $10
million, alleging that he threatened to publicize a software flaw in its slot
machines that allowed players to consistently win large amounts of money.

The company filed suit in the Alberta Court of Queen's Bench in late February
after Zues Yaghi, an Edmonton software consultant, began to post information
about the software glitch on the Internet. The flaw came to light after a
publication ban on the suit was lifted in court earlier this week.

The flaw may easily have cost the slot machine manufacturer $50,000 a day,
Yaghi said in an interview.

But lawyers for WMS estimate the losses at between $1-2 million, because they
say some Edmonton gamblers visited three states in the U.S. between December
1999 and February 2000, where they used the flaw to win at gaming.

In Alberta alone, some 300 machines were affected. WMS Gaming is one of the
largest manufacturers of slot machines in the world, with annual revenues in
1999 of $125.9 million.
The flaw involves players doubling their bets on an electronic poker game in
conjunction with several other commands. Yaghi said he first discovered the
flaw in December, doing what he called "field intrusion testing," a technique
he described as probing functions on a machine for weaknesses.

Yaghi said tapping on the "draw" button as the last credit registered would
get players into what he believed was a so-called Easter egg. Easter eggs are
deliberately inserted pieces of code meant to produce a hidden option for
users. Normally, Easter eggs are harmless mini-games or puzzles.

Yaghi demonstrated the flaw for Alberta Gaming and Liquor Commission
officials last December. Within five minutes he emptied a single slot machine
of about $600 three times.

His problems began when Yaghi offered his services to WMS Gaming as a
consultant for $250,000. WMS counter-offered with about $50,000. The
counter-offer enraged Yaghi, according to Edmonton lawyer Mark Lesniak, who
has been retained by WMS Gaming.

Yaghi began describing the glitch on Internet message boards in late
February. He wrote that he was "amazed to discover a huge open door in the
programming of these slot machines. I can literally empty thousands of
dollars in minutes from these machines."

Yaghi said in the interview he has not used the technique himself on the
slots.

Shortly after the postings, WMS obtained a search-and-seizure order, entering
Yaghi's Edmonton home three times and seizing computers and data files. The
company then filed suit.

"At that stage, when we started seeing Internet postings, something had to be
done," said Lesniak. "It's just not legal to try and destroy somebody's share
value."

Shortly after Yaghi demonstrated the glitch, the gaming authority issued a
notice recommending casinos bar Yaghi from entering. Yaghi has filed a
countersuit for C$1 million against WMS Gaming and has also filed a $2
million suit against Alberta Gaming for defamation.
Alberta Gaming is trying to recover an unspecified portion of the losses from
WMS Gaming. The losses would be revenues that would normally have gone into
the Alberta Lottery Fund. The government's revenue is 70 percent after
prizes.

Lesniak said gaming regulators in Alberta, Michigan, Iowa, and Illinois are
investigating to see if they can lay criminal charges against the individuals
who took advantage of the flaw.
WMS Gaming claims to have fixed the glitch with a software patch, but Yaghi
says he believes other models may have similar problems. Scott Schweinfurth,
WMS Gaming's CFO, said the company has no comment on any aspect of the issue.
Wired News, June 23, 2000
-----
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