Malicious Software - Definition & Threats

In cyber-security and computing, malicious software is an umbrella term encompassing various types of malware programs including adware, computer viruses, Trojans, spyware, keyloggers, ransomware and many other harmful types of software aimed at harming the user and their systems by corrupting, destroying, or denying access to their files and data, or spying and stealing their sensitive information, usually without the user's knowledge or permission.

Over the years, malicious software – or malware – has developed into an extremely serious threat that can place your computer… your precious files, photos, music, and financial information… your money… and your children… at risk. However, there are steps you can take to ensure you don’t become a victim of today’s increasingly sophisticated cyberattacks and Internet security threats.

If you’re one of the many computer and mobile device users that have asked ‘what is a computer virus?’ or ‘what is malware?’ – or you just want to know more about the malicious software threats that Kaspersky Lab’s award-winning Internet security solutions can protect you from … these web pages are for you. In the following articles, you’ll get a valuable insight into the types of threats, the scale of the problem, the tricks that cybercriminals use, and the damage they can cause:

Malware Classifications – discover more about the many different types of malware

Who Creates Malware? – learn about the malware creators… and what motivates them

What Malware Needs to Thrive – gain an insight into what’s required in order to support malware

How Malware Penetrates Systems – learn about the techniques that cybercriminals use to penetrate users’ computers and devices

Malware Damage – read about the damage that malware can cause for home users and businesses

Other articles and links related to malware and computer security