Viruses and malware are major threats to end-user computer security. Because many computers are connected to the Internet, there are several risks. Computer hackers attack systems with the goal of stealing sensitive information. PC security entails efforts to implement methods and technologies to ensure that a computer or computer network will only be used by authorized persons. There are five basic principles in IT security services
The concept of security in computing arose during the development of this technology and obtained greater attention from system administrators when networks and especially the Internet were developed. This is due to the fact that it is possible to share any kind of data and information anywhere in the world. Hence, home and business users needed protection against attacks from hackers and viruses. This led to the emergence of various companies that develop computer security solutions.
IT security is the activity of setting up a computer to protect it from threats like virus attacks, DDoS attacks and spam. Spyware is undesirable because it collects information about the user and forwards it to a central server. That information is often sold or used for promotional purposes. A firewall is designed to filter incoming and outgoing traffic.
It is good protection against crackers but needs the support of anti-virus programs to be effective. Viruses can cause a lot of trouble for computer users, they can crash or slow the PC down, create boot issues and damage files. Access rights limitations, for example, through a sandbox is an effective way to ensure that no damage can be caused.
This measure ensures that a malicious program can not get into the Windows registry and contaminate it. It is prudent to ensure that files on the system partition are write protected to prevent file modifications. Other useful constraints relate to shielding of removable disks and USB keys.
Encryption helps restrict unauthorized reading of files. Strong passwords can be used in many different places to prevent access by attackers. Programs and operating systems used by many people are an interesting target for crackers than lesser known alternatives. Examples are Windows, Internet Explorer and Firefox. Because Linux is used by fewer people, it is (even though the source code is freely available) is a less attractive target.
Linux is based on Unix which has a strict separation between the root user and default user. Linux users are on average better informed about security on their system. In addition, errors are often corrected quickly because anyone can view the source code and release an update. Whenever significant new security patches become available, it is important to install to repair vulnerabilities as soon as possible.
Hardware measures include techniques to protect an operating system against buffer overflow attacks, for example, a virus. Trusted platform module involves use of a chip that can store passwords and encryption keys. Biometric recognition: By providing, for example, fingerprint recognition or iris scanner, a computer can identity authorized users with greater certainty. And thus drastically reduce the chance that malicious individuals have access to a PC. In many computer systems, biometric security is installed by default. So there are several laptops that can be logged in with a fingerprint.