What is a hacker?

The term hacker was once used to describe highly qualified programmer. Today, it’s applied to those who access  to computer  systems exploiting   security vulnerabilities.  Hackers  break into   large networks as well as, individual computers. Once  hackers have access to  system , they may install malwares  and access to confidential data. Moreover,  they distribute  spam  using  computers  which  they  have accessed to.

What is a security  vulnerability?

Modern computer softwares are  very complex  which contain  thousands  lines of code. As  software is written by humans, it’s usual  that it  may  contain programming mistakes, known as vulnerabilities. These vulnerabilities  are used by hackers to access to computer systems. In addition, it lets malicious programmers to install their malwares automatically on your computer.

How do I protect myself from hackers?

Hackers  break into a computer system   exploiting software weaknesses .You  should use special security  system - firewall  to protect your computer system. A firewall  security system  detects hacking attempts and makes your computer system invisible to hackers. Firewall  provides  the best network protection using special  software packages.