Using Computer Science in High-Tech Criminal Justice Careers and Business by Carol Hand

Author:Carol Hand
Language: eng
Format: epub
Publisher: The Rosen Publishing Group, Inc

In 1988, Robert Morris created the first computer worm, which crashed thousands of computers. Morris was prosecuted but is now an MIT professor and an entrepreneur.

Many cybercrime methods are more technological. In keystroke logging, the hacker installs a program that records every keystroke the computer user makes. This approach provides information needed to enter the system or steal the user’s identity. Passwords can be hacked using educated guesses; brute force (trial and error); or simple algorithms that generate combinations of keyboard letters, numbers, or symbols. Password hacking is often successful because people use predictable passwords or leave default passwords in place.

Hackers can gain backdoor access by writing a program that searches for unprotected pathways into the system. If a computer has poor security, this flaw sometimes allows access without a password or username. Another backdoor-access approach is installing a program called a Trojan horse. This program is a piece of malware disguised as legitimate software. Users are tricked into downloading and installing the program on their computer. The Trojan then spies on the user or steals, deletes, blocks, modifies, or copies data. Sometimes, it simply disrupts the computer’s (or network’s) performance. Trojans cause considerable harm, but they do not self-replicate like viruses or worms.

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