There are three major classes of criminal activity with computers:
Unauthorized changing of data is generally a fraudulent act.
My long discussion of a few famous malicious programs is in a separate, emphasizes thenonexistent or weak punishment of the authors of these programs.
This is called a denial of service () attack.
The distribution of viruses via the Internet permitted a much morerapid epidemic, so that more computers could be infected in a shortertime than when floppy disks were used to spread the infection.
Each attack lasted between one and four hours.
is the causal agent of St Anthonies fire, a scourge of the middle ages when ergots contaminated flour. The ergots contain many alkaloids. Their effects are quite variable. They act on the sympathetic nervous system resulting in the inhibition of noradrenaline and sclerotin, causing dilation of blood vessels. They also act directly on the smooth muscles of the uterus causing contractions, thus their early use to induce abortion. Their strongest effect is intoxication, caused by lysergic acid amides, one of which is the recreational (and illegal) drug, LSD.
It doesn't take a great deal of sophistication to do."
Since 2000, authors of malicious programs use resources readily available on the Internet to create a "new" computer virus or worm, or launch a denial of service attack.
In issuing the sentence, Judge Gilles Ouellet commented:
Ergot alkaloids have a number of medicinal uses. Perhaps the most widespread use is in the treatment of migraines. The vasodilator activity reduces tension during an attack. The drugs also reduce blood pressure, though with untoward side effects. Alkaloids are now produced in culture by strains of and .