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A security hacker or security researcher is someone who explores methods for breaching defenses and exploiting weaknesses in a computer system or network. [1] Hackers may be motivated by a multitude of reasons, such as profit, protest, information gathering, [2] challenge, recreation, [3] or evaluation of a system weaknesses to assist in formulating defenses against potential hackers.
A hacker is a person skilled in information technology who achieves goals by non-standard means. The term has become associated in popular culture with a security hacker – someone with knowledge of bugs or exploits to break into computer systems and access data which would otherwise be inaccessible to them.
Security hackers have extensive knowledge of technology (particularly electronic devices and computer programs and networks), and may use their knowledge for illegal or unethical purposes. Hackers take advantage of vulnerabilities in software and systems; the hacking consists of manipulating computer systems or electronic devices to remotely ...
Hack-for-hire services are typically considered illegal, as they involve unauthorized access to private digital systems and computer networks. They are generally punishable under the computer crime laws of many countries, including the Computer Fraud and Abuse Act (CFAA) in the United States and the Computer Misuse Act in the United Kingdom. [6 ...
Download QR code; Print/export ... This category is for pages related to the computer security definition of hacking. Individual hackers and hacking groups should be ...
While hacking has become an important tool for governments to gather intelligence, black hats tend to work alone or with organized crime groups for financial gain. [2] [6] Black hat hackers may be novices or experienced criminals. They are usually competent infiltrators of computer networks and can circumvent security protocols. They may create ...
Another classification is by the action against the vulnerable system; unauthorized data access, arbitrary code execution, and denial of service are examples. Exploitations are commonly categorized and named [ 9 ] [ 10 ] by the type of vulnerability they exploit (see vulnerabilities for a list) [ clarification needed ] , whether they are local ...
Cyber espionage, cyber spying, or cyber-collection is the act or practice of obtaining secrets and information without the permission and knowledge of the holder of the information using methods on the Internet, networks or individual computers through the use of proxy servers, [1] cracking techniques and malicious software including Trojan horses and spyware.