Hacking viruses are computer programs that can take personal information and remotely control a system. They spread via peer-topper networks, email as well as websites that offer the ability to download content. You can prevent a hacking attack by ensuring you update your software, avoiding downloading from questionable sources, and staying away unsecured networks.
Cybercriminals use hacking viruses for all sorts of reasons. They might want to infect computers with keystroke loggers that keep track of every word a user typed, giving the perpetrator everything they need to obtain their identity and gain access to bank accounts, credit card numbers and other important data. In addition, they may utilize a compromised device as part of a larger network known as a botnet which could be used to send spam emails or launch attacks on other devices.
A virus can also be programmed to take over the functionality of a device, by changing its start page redirecting search queries an unintentional web site, or reversing the results returned by popular search engines. This kind of hacking can be described as backdoor.
The hackers who zealously tried to find low-tech ways to evade secure telecommunications and expensive long-distance calls were called phreaks (a combination of freak and phone). The majority of those who fall victim to hacking viruses today have nothing to do either with communications or the tinkering of with technology. They are the unfortunate targets of malicious hackers that exploit weaknesses in security systems on computers to steal sensitive data or disrupt normal computer use and inflict financial damage on their target.