▷Antivirus: 11 best options in 2021

Antivirus: 11 best options in 2021

There are several threats on the internet that can compromise the integrity of your devices, gain access to your personal data and even corrupt or damage important files.

Any type of computer, whether for professional or home use, needs care to perform searches on the internet, research for studies and online work. The increase in the number of people working in the home office has made the importance of care against threats even greater.

The best option for those who want to protect their devices and data from scams or malicious software that can steal your data is to install a good antivirus.

There are several free options that offer protection for users who do not demand much from their computers or do not use the internet a lot.

People who need to work with their machines, on the other hand, need to ensure safer options with paid antivirus plans to ensure the integrity of their devices. After all, this category of antivirus is constantly updated to maintain its effectiveness against viruses found on the internet.

If you still don’t know which antivirus to download to protect your computer, check out our list and find out the best options.

What is an antivirus and what is it for?

Antiviruses are software designed to find malicious programs. They are able to put them in forty for an accurate analysis and delete them. The program defends your computer by acting preventively, detecting threats in files before their installation, then they start to act.

In addition, they are also able to identify viruses and delete them on computers already infected.

Its functioning is constant, which means that it is always running in the background to detect files downloaded from the internet and devices connected to your computer, two of the main forms of infection.

How does antivirus work?

On virtually any page accessed from the internet, there are people with an interest in capturing your personal data. Antivirus is a constant protection against these threats. The program works in the background, detecting viruses by their codes during their accesses from a database.

That is why keeping your antivirus up to date with all updates is something so important. It is only in this way that it will be able to detect even the newest viruses and not be surprised by any news.

This is even more important for companies with their own servers that need to protect financial and business data.

Is it really necessary to download an antivirus?

The increase in remote work has also increased the number of digital crimes. Home networks accessing systems with incorrect settings create a vulnerability breach for networks and servers to be invaded.

Not looking for ways to protect yourself from these attacks will make your data vulnerable. You must be ready to deal with threats found on any type of media or device, such as websites, emails, applications, flash drives, CDs, among many others.

Another very relevant problem caused by virus infection and the drop in the performance of your devices. Something that directly affects your work and productivity.

Some of the most common symptoms presented on infected computers are: constant crashes, poor internet performance even without any open programs and excessive hard disk activity even without any open programs.

Now that we understand the importance of protecting our devices and data, it’s time to check out the best antivirus options.

Avast has one of the best free versions on the market. The program is constantly updated, it is good for finding recent threats and offers a great ability to perform scans.

One of the main advantages of this option is that it is a light and fast program, which makes it an excellent option for computers with little processing capacity. After all, it can be used without influencing its performance.

Antivirus offers excellent value for money in your paid plans. Through them it is possible to take advantage of very efficient real-time scanning tools, even on the websites being browsed. Avast also has resources to deal with threats related to mobile and browser internet banking.

In addition, more complete plans add cleaning and VPN functionality to block third-party tracking.


Avira also has one of the best free antivirus versions that can be found on the internet.

The main security functions are present: real-time tracking for downloads and scanning files downloaded from websites, from the cloud and transferred via USB, also has a free VPN of 500 MB per month which is unlimited in the paid version.

The Avira premium package features good protection against ramsomware, malware that hijacks victims’ devices and demands a ransom fee. It also offers 20 extra tools to aid your protection, both on desktop and mobile devices.

The antivirus also has a definitive file shredder to erase the traces left by confidential data.


AVG is an antivirus that shares the same detection mechanism found in Avast. However, AVG requires much less processing from your computer, making it a lighter option. However, its free version offers a smaller amount of features.

Despite this, AVG has a great tool for deleting infected files, it is able to optimize systems, it has the layout of its friendly interface for inexperienced users and it offers many possibilities for customization.


Kaspersky Antivirus is developed by a Russian company. This means that the solution is created in a country known for having many ingenious hackers, which means that its solutions need to be very advanced to work in the local market.

The detection and monitoring features of the program are very agile and effective, even detecting threats that are only found by competitors after being added to their virus lists. The platform also features efficient cloud protection solutions and a good VPN.

However, the solution falls short with its ramsomware detection and cleaning functionality, in addition to not having a very advanced navigation monitoring function.


McAfee is an option that has good malware detection, however, it is not among the best options on the market.

In its paid packages, the company offers the option of using antivirus on several devices at a good cost-benefit.

Among the tools made available when hiring, are the password manager and identity protector, home security feature, encrypted storage and the functionality to completely delete confidential files, erasing the traces of your data during your browsing.

McAfee also has a performance optimization feature that blocks autoplay videos and minimizes the use of your bandwidth.


ESET Internet Security has a great background tracking function, requiring very little processing from your computer. Its protection against ramsomware is very efficient, capable of dealing simply and quickly with one of the main threats on the internet.

The antivirus also performs periodic scans that look for ramsomware-like behavior, such as large-scale file encryption. If this happens, the program will ask if the action was taken by the user, if not, it will take actions against the virus.

The alternative also offers features to protect home networks from attack and a scanner that scans for malware hidden in RAM. Antivirus also monitors your local network, protecting connected smart devices.


Norton is a well-known antivirus and a popular choice for many people. In addition, it presents a number of additional tools.

Check out the main tools included in the premium package: real-time tracking and monitoring, VPN, login and password manager, cloud backup to deal with ramsomware, firewall and parental control.

The program also has a feature to monitor in real time and protect the cameras of your devices. In addition, it offers a feature to manage children’s study time, controlling the online environment during remote learning.

While it is a good alternative, Norton also has some disadvantages. Its interface is not very intuitive, which can make the experience of novice users difficult. In addition, your ramsomware solution is not as effective, which makes space for cloud backups necessary.


Tencent is a free antivirus package developed in China. Its features keep your computer safe while browsing the internet, blocking malicious websites.

Its performance is at the network level, protecting your system and browser without the need to install any type of extension.

All of this is managed through PC Manager, a platform that brings together a variety of resources to protect your computer, in addition to antivirus. On this platform it is possible to find a vulnerability corrector, a system cleaning tool and even a function to speed up your computer’s speed.


Although not as well known as other names in the market, Trend Micro Antivirus is an award winning solution.

Its antivirus offers great protection against ramsomware, it also presents an advanced artificial intelligence learning. Your solution also has a protector against scams by email, relative security settings and makes corrections to optimize your system.

Anyone who wants to expand protection for their mobile device can opt for the most expensive plan to have antivirus on their phone.

Trend Micro Antivirus

F-Secure SAFE is an antivirus that protects its users from threats such as trojans, viruses, ramsomware and various other types of malware.

The solution has resources to protect your browsing in real time, protection for internet banking, parental control, an account manager and dedicated support for your consumers.

The company also offers additional VPN and identity protection solutions, which can be purchased with antivirus in its most complete package.


Bitdenfeder is the last addition on our list, but it has an excellent malware detection tool on your system. Its threat catalog and the ability to monitor and identify hazards are as powerful as the capabilities of any other tool.

The tool also has an interesting feature to indicate dangerous links on the internet.

In spite of monitoring your computer well, the platform falls short in its optimization, as it needs to use many resources of your device to run.


Should I use a VPN with the antivirus?

VPN is a virtual private network created over your access network. Its function is to make sure that you do not leave any type of data when accessing the internet or using online services.

This is done through encryption, which encrypts your information. Thus, it is possible to browse completely completely anonymously, without being able to track data such as your location, IP, among others.

Using VPN with antivirus is worthwhile, as it adds an extra layer of protection to your information and guarantees your anonymity on the internet.

Have you found a good antivirus to protect your devices?

We hope that the content of our article and our list have helped you choose a good tool to protect your data and devices.

If you want to add an extra layer of security to your data while ensuring anonymity on the network, check out our article listing the 8 Best Free VPNs in 2021.

*The article has been translated based on the content of https://www.jivochat.com.br/blog/ferramentas/antivirus.html by www.jivochat.com.br
. If there is any problem regarding the content, copyright, please leave a report below the article. We will try to process as quickly as possible to protect the rights of the author. Thank you very much!

*We just want readers to access information more quickly and easily with other multilingual content, instead of information only available in a certain language.

*We always respect the copyright of the content of the author and always include the original link of the source article. If the author disagrees, just leave the report below the article, the article will be edited or deleted at the request of the author. Thanks very much! Best regards!