Elk Cloner is one of the first known viruses that were
written for Apple II systems around 1982. Elk Cloner spread by using a
technique called “boot sector”. When a computer booted from an infected floppy
disk, a copy of the virus was placed in the computer’s memory. If an uninfected
floppy disk was inserted into the computer Elk Cloner would be copied to that
disk, allowing it to spread disk to disk.
ILOVEYOU was a computer virus that attacked tens of thousands
windows personal computers on and after 5th May. It started
spreading as an email message with the subject line “ILOVEYOU”. The virus would
overwrite image files, and sent copies of itself to the first 50 address in the
Windows Address Book, and infected 50 million computers.
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