Device Security: Antivirus and Everything Around It
Why should we use antivirus software? And is it worth splashing out on premium features? In this article, we'll delve into the world of antivirus programs, which are more crucial than ever in today's online landscape. We'll uncover how these programs combat ever-evolving threats and safeguard your personal data. We'll explore how antivirus actually works and what other options you can employ against malicious files.
You might be surprised to learn that the first computer virus, dubbed "Brain," originated in Pakistan in the 1980s. This virus sparked the creation of the first antivirus programs because it spread like wildfire across the globe, creating a pressing need for tools to detect and remove it. Since then, both antivirus programs and viruses have evolved and improved dramatically. [1] Today's antivirus software doesn't just remove malicious code; it also protects against threats such as phishing pages that users might unwittingly click on.
These days, it's par for the course for operating systems to have built-in antivirus software. For instance, Windows versions from 7 onwards include Windows Defender, which offers ample protection for the average user. However, if a user opts for a different antivirus program, Windows Defender automatically switches off to avoid any conflicts between programs.
Running two antivirus programs simultaneously can lead to several issues, such as reduced computer performance, detection conflicts that can destabilize the system, and false alarms. This situation can also result in important system processes being blocked because both antiviruses might try to access files or system resources at the same time. Therefore, it's advisable to stick to just one antivirus program, which will better secure your system and ensure it runs smoothly.
How does antivirus work?
1. Database of known viruses (signatures)
Antivirus programs scan files and applications on the computer and compare them with a database of signatures, which are unique fingerprints of specific viruses, to identify and remove known viruses.
2. Advanced detection methods
Tyto metody jdou nad rámec tradičních antivirových skenů a zaměřují se na identifikaci sofistikovaných útoků, které běžná ochrana nemusí rozpoznat.
Heuristic analysis: Uses general rules to flag files with suspicious behavior that might indicate the presence of a new or unknown virus.
Sandboxing: Runs suspicious applications in an isolated environment to test them without risk to the rest of the system.
Behavioral analysis: Monitors program behavior in real-time, responding to unusual operations like unauthorized network access.
Premium features or basic protection?
Nearly every antivirus program offers a premium version with extra features that you can purchase or upgrade to via subscription. These programs often use risk notifications to nudge users towards upgrading to the premium version, which can be seen as a marketing ploy to boost sales. Although some premium features, such as advanced detection methods or add-ons like VPN, can indeed provide an additional layer of security. However, we want to emphasize that for most regular users, the basic features of antivirus programs are sufficient to provide adequate protection.
Did you know? The Czech Republic is an antivirus powerhouse!
The Czech Republic has made a name for itself as an antivirus powerhouse with leading companies like Avast and AVG, which have carved out a strong position in the global antivirus software market since the 1990s. These companies, founded in 1988 and 1991 respectively, brought key innovations in virus detection and computer protection.
In 2016, they joined forces, creating one of the world's largest security software providers. Later, in 2023, Avast completed a merger with the American giant Norton LifeLock, further cementing its global position and expanding its capacity to provide cutting-edge security solutions to more than half a billion users worldwide. [2]
How to check your computer using Windows Defender?
If you use Windows Defender to protect your computer, you might not have noticed some of its features because it's not as prominently visible as other antivirus programs. To access the Windows Defender interface, open the security settings on your computer. You can do this by searching for "Windows Security" and clicking on "Virus & threat protection". This section lets you fully control Windows Defender and tweak it to suit your needs.
100 antiviruses in one!
VirusTotal is an online service that allows users to analyze files and URLs to detect the presence of malware, viruses, and other nasty threats. This service is unique in that it uses more than 70 antivirus scanners and malware detection tools, making it a highly effective tool for identifying potential threats.
Conclusion
Perhaps you were looking for an answer to the question - which antivirus is actually the best. The answer isn't straightforward because threats are constantly evolving, and antiviruses are regularly updated, changing their features and effectiveness. Instead of constantly chopping and changing antivirus programs, it's better to follow the principle that the best antivirus is one that has an informed and responsible user. And how do you become such a user? We recommend reading our other educational articles or, better yet, working through our freshly updated educational course, Cybercompass, which will comprehensively guide you through the pitfalls of cyberspace.