The best antivirus for business: why we recommend Bitdefender

For businesses, we recommend Bitdefender GravityZone Business Security: it stops almost every attack in independent tests, it’s managed from a single console for all your computers, and it doesn’t slow them down. Below you’ll find why we chose it and which criteria to look at when you choose an antivirus for your company.

Keeping up with technology: why does antivirus matter?

Technology advances a little further every day and, along with it, so does our desire to have the latest phone, laptop and so on. Buying a new laptop, for example, gives you peace of mind: you’ve taken another step forward, and you feel safer thanks to the new configuration.

Technology is part of everyone’s life and plays a fairly important role in it. But however exciting a new device may be, protecting it really means protecting yourself and your company, because that’s where your data lives. So choosing an antivirus is an extremely important step in keeping the sense of safety that a new device gives you.

Which antivirus do we recommend for businesses?

To keep you safe from cybercriminals, our recommendation is Bitdefender, a Romanian company founded in 2001 in Bucharest, with its business solution, GravityZone Business Security.

In 2021, when we first wrote this article, Bitdefender had won the latest round of comparative antivirus tests, standing out against Norton, Kaspersky and Trend Micro. Its results have stayed good since then: in the AV-Comparatives business test for March–June 2025, Bitdefender GravityZone Business Security Premium blocked 437 of the 438 real-world attacks tested (99.8%), with a single false alarm.

Keep in mind that an antivirus is no substitute for updates. Windows 10 has not received free updates since October 14, 2025, and companies can buy Extended Security Updates (ESU), paid per computer, until October 2028 at the latest. For Windows computers, see also our security recommendations for Windows 10.

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Why is Bitdefender the best antivirus for business?

Although it was fairly predictable that Bitdefender would come out on top in the 2021 tests, its advantages deserve a detailed explanation, so that they’re easier to understand.

When it comes to IT security, Bitdefender shows superior quality. It has a very good anti-malware engine, filters web traffic and blocks phishing sites, yet it’s easy to install and use, even for people who aren’t good with computers.

The main features we recommend it for

1. Safety: obvious as it may be, it’s worth mentioning that Bitdefender is among the most trusted solutions when it comes to immediately blocking a malicious or suspicious program, as independent tests also show.
2. Features designed for businesses: GravityZone Business Security detects unusual attempts to encrypt files (ransomware), stops the offending process and restores the affected files. It analyzes network traffic and blocks attacks such as repeated password-guessing attempts or port scans (Network Attack Defense). It filters websites and blocks phishing, finds misconfigurations and vulnerable software on computers (Risk Management), and it’s managed from a single console. Optionally, you can add automatic Windows and application updates (Patch Management), disk encryption (Full Disk Encryption), email protection (Email Security) and phone protection (Security for Mobile).
3. Easy to use: in our opinion, Bitdefender is one of the easiest and most user-friendly antivirus programs, because it puts the user experience first. You can have a program that gives you very strong protection and lots of benefits, but if you can’t figure out how to read the results or how to scan something… it’s no use. In companies, management is handled from the central console, by the IT department or the IT services provider.
4. Doesn’t affect device performance: while other antivirus programs have a significant impact on how the device runs while they scan, Bitdefender protects you without draining much battery or slowing the computer down, so it doesn’t get in the way of whatever the user is doing in the meantime.
5. Affordable: despite its standing in the tests, Bitdefender manages to keep its prices fairly competitive, given what it offers.

An antivirus, however, is no substitute for a secure wireless network or for strong passwords with two-step verification.

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What should a business antivirus have?

A business antivirus must protect every computer from a central console, stop ransomware and phishing, and show you right away which computer has been left unprotected. Look for these criteria:

• Centralized management: policies, alerts and reports for all computers, from a single place.
• Ransomware protection and web filtering, not just file scanning.
• Behavior-based detection (EDR), especially useful in companies with many computers or sensitive data.
• Coverage for every device: Windows, macOS, servers and phones.
• Good results in independent tests, such as AV-Comparatives or AV-TEST.
• Automatic updates for the operating system and applications.

Microsoft Defender Antivirus, built into Windows, offers good basic protection for a personal computer. Businesses, however, need centralized management: either a solution like GravityZone or Microsoft Defender for Business, included in Microsoft 365 Business Premium. For companies that fall under NIS2 (in Romania, GEO 155/2024), protecting computers and detecting incidents are part of the required security measures.

When antivirus is no longer enough, the next steps are EDR, XDR or MDR. The differences and the solutions we recommend (Bitdefender, Microsoft Defender, Fortinet) are on our page about IT security for businesses.

How do you protect your devices?

RezolvIT provides IT outsourcing and successfully supports the companies it works with, whether that means securing work laptops used at home or enabling employees to work remotely. If you want to find out how well your company’s computers are protected, request a free IT audit.