What is Antivirus Software?

Viruses are a specific type of malware that infects a computer, system or network and spreads like a contagion, hence the name. Most modern antivirus solutions protect against many types of malware including viruses, adware, spyware, trojans, and ransomware attacks. Antivirus tools make up one component of the endpoint protection ecosystem. While antivirus covers malware protection, features for detection, remediation, and device governance may not be included. EDR tools typically provide a wider breadth of features for incident detection, malware isolation, and infection remediation. Endpoint management tools will supply additional features such as asset management, system requirements updates, and network monitoring. Endpoint locations and technology infrastructure are key considerations for security software. Antivirus solutions are a necessity, especially with the rise of bring-your-own-device (BYOD) policies. BYOD practices provide a wealth of benefits, but they can make it more difficult to close the security loop. Some antivirus apps will only support Windows or Mac devices; others support everything from tablets to smart devices. It’s important to pair your endpoint management policies with security tools that support the range of devices accessing your network. Since some employees are slow to update applications and operating systems, conflicts may arise and force administrators to regulate system requirements. Key Benefits of Antivirus Software Block malware from infecting devices Protect against phishing, spam, and hackers Increase endpoint lifetime Reduce risk of data theft, loss, or corruption Regulate antivirus policies companywide

Why Use Antivirus Software?

Antivirus software is an important component of a well-rounded security software stack and can be a valuable addition to existing software programs. These solutions effectively reduce the presence of malware able to gain access to your company’s sensitive information. Many antivirus vendors even offer free antivirus programs for personal use. Information security — Companies are becoming more vigilant in protecting their sensitive business data. Industries such as financial services and banking are obvious places where it is important to keep data safe. But hackers target all kinds of companies and individuals, as almost all organizations and people have some level of valuable data stored on their networks. Device protection — Endpoints are disparate and plentiful in the modern world. Companies often allow users to access business data and applications on whatever device they have on hand. It’s important, however, to ensure each of those endpoints is secure. Cross-platform availability is important for companies with BYOD practices. But antivirus tools help keep dangerous programs and hackers out of your business network, regardless of the type of device they’re using. Browsing safety — Employees often surf the web and end up on potentially dangerous sites. If your company’s network doesn’t block unapproved sites or employees surf on their own network, it’s fairly likely they’ll end up encountering some kind of malware. Antivirus solutions are useful tools for identifying potentially dangerous material and preventing users from obtaining it. This includes clicking dangerous ads, downloading suspicious files, or getting caught in a phishing incident. All of these user behaviors can end up allowing malware entrance into a network and put business data at risk. Employee unreliability — Like the browser issue, employees aren’t always skilled in best practices for internet security. Many users will download an extension or program simply because a site said they have to; antivirus solutions help make it more difficult, or even impossible, to download a malicious program. These downloads could very easily include malware and wreak havoc on a company’s network. That puts both the individual user’s data at risk. And because of a virus’ ability to replicate and spread, the company’s entire network becomes a target.

What are the Different Kinds of Antivirus Software?

Antivirus — These are the longest-standing software type of the bunch. Viruses are the best-known and debatably the oldest forms of malware. Viruses differentiate themselves through their ability to replicate and spread. They can be attached to files from the internet, suspicious applications, and dangerous websites. Once a virus is downloaded, it can replicate and distribute its copies across computer networks. These viruses can be used for a number of nefarious purposes, such as remote access and data theft. Antivirus solutions identify known variants of viral malware. Many antivirus solutions also cover a number of the following cyberthreats, but they have historically focused on viruses. Anti-malware — Anti-malware solutions will cover most kinds of cyber threats that are delivered in the form of files or applications. There are millions of different malware forms that range from adware to ransomware; anti-malware software aims to prevent all kinds from harming your devices. These dangerous programs can mutate and adapt to slip by traditional firewalls and discover new exploits and zero-day vulnerabilities. As a result, many are synced to threat intelligence networks in addition to malware libraries to identify evolving forms of malware and protect against zero-day attacks. Anti-spyware — Spyware is a common form of malware used to secretly gather sensitive information from their targets. These can be used to track cookies, monitor systems, or harvest identity data. The most common way to infect a device with spyware is through a program called adware. These usually create popups or windows within browsers that trigger downloads when the user attempts to close them. Other forms of spyware include systems monitors, cookie trackers, and trojans, which present themselves as harmless components, but secretly possess spyware within their files. Anti-worm — A computer worm is a malware program that functions similarly to a virus in that it replicates itself and spreads within computer networks. Unlike viruses, worms typically don’t modify or corrupt the target’s files. They’re used for hacking practices such as creating backdoors and botnets, or launching ransomware attacks. Worms are effective ransomware attack tools since they are designed to replicate and spread quickly across large networks. A worm will lock down a network’s endpoints and require payment in return for access to the end user’s files. If they refuse, the virus may destroy or harvest an entire network’s data. Anti-phishing — Phishing is a common practice used to take advantage of human error. Attacks may come in the form of emails, ads, or other means of electronic communication. Phishing content mimics legitimate messages or websites and asks a user to submit credentials or banking information. Many email gateways have filters to prevent phishing content from reaching users. Some antivirus solutions will also identify suspicious websites and alert users if the programs suspects a site may contain phishing content.

Page 2 | Best Antivirus Software: User Reviews from November 2026

Trellix Endpoint Security

The Trellix Endpoint Security Suite is a comprehensive and unified set of solutions that protects devices and endpoints across your hybrid network, empowering your organization to address complex, distributed security issues thoroughly, efficiently, and quickly. It uses analytics and machine learning to achieve industry-leading threat protection, all while offering the flexibility to connect to products from other vendors. The solution helps you unify your data and threat defenses from device to cloud, for integrated security.

Average Rating: 4.3/5.0

Total Reviews: 319

How Do G2 Users Rate Trellix Endpoint Security?

Has the product been a good partner in doing business?: 8.1/10 (Category avg: 8.8/10)
Quality of Support: 8.5/10 (Category avg: 8.6/10)
Ease of Use: 8.6/10 (Category avg: 9.0/10)
AI Text Summarization: 8.1/10 (Category avg: 7.6/10)

Who Is the Company Behind Trellix Endpoint Security?

Seller: Trellix
Year Founded: 2004
HQ Location: Plano, TX
Twitter: @Trellix
241,168 Twitter followers
LinkedIn® Page: www.linkedin.com
3,811 employees on LinkedIn®

Who Uses This Product?

Who Uses This: Senior Software Engineer, Software Developer
Top Industries: Information Technology and Services, Computer Software
Company Size: 42% Medium, 41% Large

What Do G2 Reviewers Say About Trellix Endpoint Security?

AI-generated summary from verified user reviews

Pros

Users find Trellix Endpoint Security to be very user-friendly, facilitating easy implementation and effective threat management.
Users appreciate the robust multi-layered protection of Trellix Endpoint Security against a wide range of threats.
Users value the advanced threat detection of Trellix Endpoint Security, stopping sophisticated attacks before they can cause harm.
Users commend the responsive customer support of Trellix Endpoint Security, enhancing their overall experience with the product.
Users value the robust, multi-layered protection of Trellix Endpoint Security against a wide array of threats.

Cons

Users find the difficult configuration of Trellix Endpoint Security to be overwhelming, especially for new or smaller teams.
Users find Trellix Endpoint Security expensive, noting that competitors offer more features at a lower price.
Users experience agent issues that lead to high CPU and memory usage during startup, requiring advanced configuration skills.
Users find the complex installation of Trellix Endpoint Security challenging, especially for those unfamiliar with enterprise systems.
Users find the complex interface of Trellix Endpoint Security overwhelming, especially for beginners and smaller teams.

What Are Recent G2 Reviews of Trellix Endpoint Security?

"Seamless Orchestration and Robust Protection Across All Endpoints"

Rating: 5.0/5.0 stars

— Jose M.

Best Antivirus Software - Page 2

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