Computer hacking is the practice of modifying computer hardware and software to accomplish a goal outside of the creator’s original purpose. People who engage in computer hacking activities are often called hackers. Since the word “hack” has long been used to describe someone who is incompetent at his/her profession, some hackers claim this term is offensive and fails to give appropriate recognition to their skills.
Computer hacking is most common among teenagers and young adults, although there are many older hackers as well. Many hackers are true technology buffs who enjoy learning more about how computers work and consider computer hacking an “art” form. They often enjoy programming and have expert-level skills in one particular program. For these individuals, computer hacking is a real life application of their problem-solving skills. It’s a chance to demonstrate their abilities, not an opportunity to harm others.
Since a large number of hackers are self-taught prodigies, some corporations actually employ computer hackers as part of their technical support staff. These individuals use their skills to find flaws in the company’s security system so that they can be repaired quickly. In many cases, this type of computer hacking helps prevent identity theft and other serious computer-related crimes.
Common Methods for Hacking Computer Terminals(Servers):
This comprises of either taking control over terminal(or Server) or render it useless or to crash it.. following methods are used from a long time and are still used..
1. Denial of Service -
DoS attacks give hackers a way to bring down a network without gaining internal access. DoSattacks work by flooding the access routers with bogus traffic(which can be e-mail or Transmission Control Protocol, TCP, packets).
2. Distributed DoSs -
Distributed DoSs (DDoSs) are coordinated DoS attacks from multiple sources. A DDoS is more difficult to block because it uses multiple, changing, source IP addresses.
3. Sniffing -
Sniffing refers to the act of intercepting TCP packets. This interception can happen through simple eavesdropping or something more sinister.
4. Spoofing -
Spoofing is the act of sending an illegitimate packet with an expected acknowledgment (ACK), which a hacker can guess, predict, or obtain by snooping
5. SQL injection -
SQL injection is a code injection technique that exploits a security vulnerability occurring in the database layer of an application. It uses normal SQL commands to get into database with elivatedprivellages..
6. Viruses and Worms -
Viruses and worms are self-replicating programs or code fragments that attach themselves to other programs (viruses) or machines (worms). Both viruses and worms attempt to shut down networks by flooding them with massive amounts of bogus traffic, usually through e-mail.
7. Back Doors -
Hackers can gain access to a network by exploiting back doors administrative shortcuts, configuration errors, easily deciphered passwords, and unsecured dial-ups. With the aid ofcomputerized searchers (bots), hackers can probably find any weakness in the network.
So, not interested in these stuffs.. huh??? wait there is more for you.. So, how about the one related to hacking the passwords of email and doing some more exciting stuffs.. The various methods employed for this are:
8. Trojan Horses -
Trojan horses, which are attached to other programs, are the leading cause of all break-ins. When a user downloads and activates a Trojan horse, the software can take the full control over the system and you can remotely control the whole system.. great..!!! They are also reffered asRATs(Remote Administration tools)
9. Keyloggers -
Consider the situation, everything you type in the system is mailed to the hacker..!! Wouldn't it be easy to track your password from that.. Keyloggers perform similar functionallities.. So next time you type anything.. Beware..!! Have already posted...
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