Hacking generally refers to act of a person abusing computer access, breaking into computers, or using computers without authorization. An intruder or attacker is a person who carries out an attack.
There are in essence two types of hackers, often referred to as 1.White-hat hackers. 2.Black-hat hackers. White hat hackers enjoy learning and working with computer systems, and consequently gains a deeper understanding of the subject. Black-hat hackers often called as ‘Crackers’ called by White-hat hackers.
Steal credit card numbers. Steal passwords to other systems. To steal programs or files. Read others’ mails.
Files disappear or are modified unexpectedly. Strange files appear or grow in size unexpectedly. Programs stop working as expected. Your internet connection slows dramatically for an extended period. The computer starts crashing frequently.
Gathering information. 1.port scanning. 2.packet sniffing. Launching attack 1.Denial of Service(DOS). 2.Password cracking. 3.Packet Sequence attacks. 4.Operating System exploits. 5.FTP(File Transfer Protocol). 6.Fore Core Dumping.
Server-side security. It is a very large and complex area. Client-side security:-This contains 3 areas 1.Anti-virus security. 2.Personal Firewall. 3.Encryption.
Encryption programs basically ‘scramble’ the original file so that it is unreadable to anyone without the correct password to de-scramble the file. The key to data encryption is to choose your passwords carefully, and change your passwords frequently.
The main appeal to me is to ability to communicate complex ideas in a fast, cheap and creative way. A level-headed approach should be taken by all internet users to protect their privacy and security online. When the true meaning of hacking is realized people will be able to publicly declare themselves as hackers.