Stay Secure Hub — Independent Reviews of VPNs, Antivirus & Privacy Tools  
Updated in April 2026

Best Antivirus Software of 2026

Complete protection against malware, ransomware, and online threats. We test detection rates, performance impact, and security features.

Os Melhores Antivírus de 2026

🥇 Bitdefender logo
Bitdefender Best Overall Choice
Get Best Deal 🔥
View Deal
View Deal

✔ Based on independent testing

✔ Regularly updated rankings

🔥 200+ users checked these deals today

What Is Antivirus Software and Why Do You Need It?

Antivirus software is a security tool that protects your device from malware, viruses, ransomware, spyware, and other online threats. It works in real time by scanning files, downloads, and system processes to detect and remove malicious activity before it causes damage.

Real-Time Protection

Continuously monitors files and system activity to block threats instantly

Deep System Scans

Performs full system scans to detect hidden or advanced threats

Safe Threat Removal

Removes malware without damaging your system or important files

Types of threats antivirus software protects against:

  • Ransomware: Encrypts your files and demands payment to restore access
  • Spyware: Steals personal data such as passwords and financial information
  • Trojans: Disguised as legitimate software to gain access to your system
  • Phishing: Fake emails or websites designed to steal your login credentials

How We Test and Rank Antivirus Software

We test each antivirus for at least 60 days across multiple devices and real-world scenarios. Here is our full testing methodology:

1

Detection Rate

We test with 1,000+ real malware samples using independent labs such as AV-Test and AV-Comparatives. A top antivirus should achieve a detection rate above 99.5%.

2

System Performance Impact

We measure CPU, RAM usage, and system performance during scans. A good antivirus should use less than 10% CPU and have minimal impact on performance.

3

False Positives

We check how often safe files are incorrectly flagged as threats. Fewer than 5 false positives per week is considered acceptable.

4

Additional Features

We evaluate extra features such as firewall, built-in VPN, password manager, banking protection, parental controls, and overall security tools.

Transparency: Some links on this page are affiliate links. We may earn a commission if you purchase through them, at no extra cost to you. Our reviews remain independent and based on real testing.

Quick Comparison

Product
Score
Detection
Extras
Devices
Price
Read review
9.5
9,8/10
VPN + firewall + password manager
5
$2.50/month
Read review
9
9,3/10
Unlimited VPN + dark web monitoring
5
$3.33/month
Read review
8.7
8,8/10
System tune-up tools included
3
$1.99/month
Read review
8.2
9,0/10
Included
1–10
From $40/year

How to Choose the Right Antivirus

Not all antivirus solutions are the same. Choose based on your usage and level of protection needed:

Basic User

Web browsing, email, and social media usage

Recommended: Windows Defender or Kaspersky

Maximum Protection

Full security suite with advanced features

Recommended: Bitdefender Total Security

What to look for:

  • ✔ High malware detection rate (99%+)
  • ✔ Low system impact
  • ✔ Real-time protection
  • ✔ Ransomware protection
  • ✔ Money-back guarantee

Análises Completas

Perguntas Frequentes

O Windows Defender é suficiente?

Para utilizadores básicos, sim. Mas antivírus premium oferecem proteção extra contra ransomware, phishing avançado e incluem VPN/firewall.

Antivírus deixa o PC mais lento?

Antivírus modernos como Bitdefender têm impacto mínimo. Apenas durante scans completos pode sentir alguma lentidão.

Conclusão

Melhor no geral: Bitdefender

Taxa de deteção perfeita e impacto mínimo no sistema.

Última atualização: 29/04/2026

Pronto para proteger o seu computador?

Escolha um antivírus abaixo e fique protegido contra malware, ransomware e ameaças online.

Melhor Escolha Try Bitdefender
9.6/10

Garantia de 30 dias

Testar Norton
9.0/10

Inclui VPN integrada

Visit TotalAV
8.7/10

Melhor preço

Cancelamento fácil a qualquer momento
Proteção em tempo real
Testado por AV-Test
Suporte 24/7
Impacto mínimo no sistema