Word: chui
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Dates: during 1980-1989
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...Friday morning last June, Chen Chui, systems manager of the hospital's medical physics computer service, discovered to his great astonishment that a Digital VAX 11/780 computer, which monitors the radiation treatment for 250 patients, had inexplicably failed during the night. Looking into the machine's log, he found that a file of billing records worth about $1,500 was missing and that passwords had been issued to five unauthorized accounts. Chui deleted the new names and took the extra precaution of replacing all the passwords for those authorized to change patient records...
...Chui hoped that that would be the last of it. It was not. After the weekend he discovered that someone had made contact with the computer through a telephone hookup and introduced a new program: whenever a legitimate user typed in his password, the code name was immediately sent to the intruder. "It was panic," says Dr. Radhe Mohan, director of the computer service. "Someone was up to big mischief that could have conceivably caused harm...
Sloan-Kettering officials called the New York City police, the FBI and New York Telephone security, which tapped the phone lines connected to the machine. Then Chui tried to reach the intruders by leaving messages in their computer terminals. "You have done some harm to the system," read one plea. "Please call us and help us repair the damage." About an hour after the message went out, someone called back. "He said he was sorry," recalls Chui. "But when we asked how he got into the system he refused to answer...