The headline malware statistics are still large: AV-TEST registers more than 450,000 new malware and PUA samples a day, Microsoft blocks 4.7 million net new malware files daily, and Verizon’s 2026 DBIR found ransomware in 48% of breaches.［1］［2］［3］ Read together, these antivirus statistics answer the practical question behind the search, is antivirus software still useful in 2026? Yes: malware detection still has a real job, but as one layer of defense, not the whole plan.

The question worth updating is not a simple “install it or skip it.” It is where antivirus belongs in your broader security stack.

Use the online security guide as the baseline: it connects this risk to account, device, browser, and network hardening.

Key Takeaways

AV-TEST still records more than 450,000 new malware and PUA samples every day. The volume has not simply disappeared.［1］

Microsoft’s 2026 report counts 4.7 million net new malware file blocks every day.［2］

Microsoft says user execution and valid accounts remain the most common initial access techniques, and exposed cloud workloads were attacked within 5.3 hours on average.［2］

Verizon’s 2026 DBIR found ransomware in 48% of breaches, and exploited vulnerabilities (31%) overtook stolen credentials as the top way in.［3］

Endpoint protection still matters, but it covers one layer. It does not fix patching, passwords, permissions, or backups for you.

Which 8 antivirus statistics should you look at first?

1. AV-TEST: more than 450,000 new malware and PUA samples every day

AV-TEST’s current statistics page says it registers more than 450,000 new malicious programs and potentially unwanted applications every day.［1］ Not every sample is equally dangerous, but that number makes it hard to argue that malware volume is no longer worth worrying about.

2. Microsoft: 4.7 million net new malware files blocked per day

Microsoft’s 2026 Digital Defense Report, covering July 2025 to June 2026, gives an even more concrete number: 4.7 million net new malware file blocks every day.［2］ Endpoint detection is still dealing with high-throughput reality, not occasional one-off threats.

3. Microsoft: more than 165 trillion security signals per day

The same report says Microsoft processes more than 165 trillion security signals every day.［2］ Modern protection is no longer just a local file scan. It combines cloud intelligence, behavior, and large-scale correlation.

4. Microsoft: user execution and valid accounts remain the most common ways in

This matters. Some people dismiss antivirus because “real threats are all account-based now.” Valid accounts are indeed a top technique, but user execution, meaning someone opens a file or runs something, sits beside it. Microsoft also found that 89–95% of email phishing attachments led to a credential theft effort, so attachment detection and download blocking still have value.［2］

5. Microsoft: exposed cloud workloads were attacked within 5.3 hours on average

That number is a useful reminder: endpoint protection matters, but patch management and exposure management matter just as much.［2］ If a system or service is left exposed or unpatched, antivirus is not a magic shield.

6. Verizon: 31% of breaches started with an exploited vulnerability

The 2026 DBIR, covering incidents from November 2024 to October 2025, found that vulnerability exploitation overtook stolen credentials as the top way attackers get in.［3］ Antivirus usually sees what happens after that first step, which is why patching comes first.

7. Verizon: ransomware appeared in 48% of breaches

The same report says payouts are shrinking, yet ransomware is now part of almost half of all breaches.［3］ The risk of locked files, disrupted operations, and data theft has not gone away.

8. AV-TEST: by early 2026, Windows malware samples were approaching the billion mark

AV-TEST’s 2025 awards article noted that Windows malware samples grew from 920 million in 2024 to 995 million in 2025, and said the count was likely to pass 1 billion by March 2026.［4］ The point is not fear. It is that the threat surface has not shrunk automatically just because operating systems have improved.

What do these numbers actually mean?

Antivirus is still useful

It is especially useful for:

blocking malicious downloads;
detecting known samples;
flagging suspicious behavior;
identifying ransomware and infostealers early;
giving organizations endpoint visibility.

But it is no longer the only star of the show

A more realistic security stack looks like this:

Layer	What it mainly handles
Antivirus / endpoint protection	Malicious files, suspicious behavior, endpoint alerts
Patch management	Exploit prevention
MFA and account protection	Account takeover
Email and browser protection	Phishing and malicious links
Backups	Recovery after ransomware

If you are still asking whether you need antivirus today, read Do you still need antivirus software? Do not confuse “useful” with “all-powerful”.

Ask “which layer does it protect?” instead of “is it still useful?”

Most users fall into one of two extremes:

thinking antivirus makes them safe from everything;
thinking accounts and cloud apps made antivirus irrelevant.

Reality is usually in the middle.

Antivirus today is more like endpoint insurance than the commander of your whole security program. You still need to update your system, avoid unknown software, stop reusing passwords, and turn on MFA for important accounts.

Summary

Antivirus statistics do not show that antivirus is useless. They show that threat volume remains high.［1］［2］［3］［4］
More than 450,000 new malware and PUA samples per day, 4.7 million net new malware files blocked per day, and ransomware in 48% of breaches all point to the continued value of endpoint protection.［1］［2］［3］
Endpoint protection is only one layer. Patching, MFA, backups, and anti-phishing habits are just as important.
The strongest approach is not to idolize antivirus, but to put it back into a layered defense model.

FAQ

Do these antivirus statistics mean everyone must install a third-party product?

No. They show that endpoint protection still matters. They do not prove that every person must use a third-party antivirus product.

Is Windows built-in protection strong enough now?

Recent AV-TEST results show that built-in protection can perform well, but whether it is enough depends on your risk profile.［5］

With so much malware, what should regular users do first?

Update your system, avoid suspicious software, enable MFA for email and core accounts, and then decide whether you need stronger endpoint protection.

If ransomware is rising, can antivirus always stop it?

No. Antivirus can reduce risk, but backups, patching, and permission management are also critical.

What are the most common entry points today?

Microsoft’s 2026 data points to user execution and valid accounts, while Verizon found that exploited vulnerabilities overtook stolen credentials as the top breach entry point.［2］［3］

Can I compare malware statistics from 2016 or 2018 with today’s?

Only loosely. Labs change how they count samples, and vendors report different scopes, so compare a trend within one source. AV-TEST, for example, says its Windows sample database grew from 920 million in 2024 to 995 million in 2025, and its public charts break out Windows, macOS, and Android rather than Linux.［1］［4］

Is one statistic enough?

No. The useful view is to connect threat volume, entry points, and protection layers.

Disclaimer

This article is for general cybersecurity education only. Different measurement methods, sample sets, and reporting scopes can affect how comparable specific statistics are.

A VPN cannot turn vendor counts into comparable risk without checking definitions, samples, and reporting periods.

Sources

AV-TEST, Malware Statistics & Trends Report: https://www.av-test.org/en/statistics/malware/
Microsoft, Digital Defense Report 2026: https://www.microsoft.com/en-us/corporate-responsibility/cybersecurity/microsoft-digital-defense-report-2025
Verizon, 2026 Data Breach Investigations Report (DBIR): https://www.verizon.com/business/resources/reports/dbir/
AV-TEST, Awards 2025 malware statistics note: https://www.av-test.org/en/news/av-test-awards-2025-celebrating-the-very-best-of-it-security-products/
AV-TEST, Test antivirus software for Windows 11 - August 2026: https://www.av-test.org/en/antivirus/home-windows/

Sources checked 4 October 2026.

Related Articles:

Antivirus Statistics 2026: 8 Numbers Worth Checking