Cyber ​​Security Cyber ​​security is the way the IT industry fights cyber crime. This topic was chosen because there is an ever-increasing dependence on computer systems. Any destruction or breach of these systems can cause more damage than ever before. New software/hardware is developed every day to help protect today's computers and tomorrow's systems. Viruses are one of the biggest problems IT professionals face. Every year more than 45,000 different viruses invade Windows-based PCs. Over the past year, many of these bugs have caused billions of dollars in damage. Even though Windows is the most popular operating system in the world, its many features and ease of use have made it vulnerable to many cyber threats. Companies like McAfee and Norton have thousands of programmers working to kill all known viruses. Another problem plaguing the computer industry is the group of people known as hackers or crackers. By definition, a hacker is someone who manages to illegally enter a computer system that is not theirs for the purpose of stealing and corrupting data. Hackers exploit weaknesses in your computer against you to gain access to your computer system. In most cases, the computer user does not even know that there are ways to access the system. This is because most of the exploited weaknesses are widely distributed weaknesses in commercial software. The biggest problem that the cyber industry is facing as a hole is cyber crime in general. The definition of computer crime is any criminal act that uses a computer as a means to commit the crime. Unauthorized bank and wire transfers cause millions of dollars in losses every year. Cybercrime is not always just for profit, sometimes the goal is just destruction. One of the main solutions to cybersecurity problems is a good combination of software and hardware. A company must constantly keep its antivirus software updated. The software can also be used to limit user access so that they only use the parts of the system that they must. This is necessary to prevent any destruction of valuable information, accidentally or intentionally. There is also software designed to scan incoming email and attachments for any destructive code. Having a high-performance firewall will also help protect your network.