Bitdefender and Kaspersky have both appeared in independent antivirus tests, but U.S. readers do not have the same purchasing decision as readers elsewhere. On June 20, 2024, the U.S. Department of Commerce’s Bureau of Industry and Security issued a Final Determination prohibiting Kaspersky antivirus software and cybersecurity products for U.S. customers and U.S. persons. The transition period for relevant signature and codebase updates ended at 12:00 a.m. EDT on September 29, 2024.
That is a regulatory and availability issue, not proof that every historical Kaspersky lab result was technically poor. It also is not a worldwide ban. Readers outside the United States must check their own country’s rules, local availability, support status, and employer requirements.
Quick answer for U.S. readers
If you are in the United States or are a U.S. person, do not buy or continue relying on Kaspersky consumer antivirus as your active protection. The BIS guidance makes the product unavailable for the covered U.S. transactions, and the update transition has ended. Choose a currently available, actively maintained alternative and uninstall the old product only after the replacement is ready.
What the U.S. restriction means in practice
The BIS Kaspersky information page explains both the covered prohibition and the limited transition period. Do not interpret the old copy on a computer as evidence that the product remains supported. If you are replacing it:
- Download the replacement from its official site before removing Kaspersky.
- Save license details and export any settings you genuinely need.
- Install and update the replacement while connected to a trusted network.
- Restart and confirm that real-time protection is active.
- Remove the old product with its official uninstall process.
- Check Windows Security or the replacement dashboard for conflicting or disabled protection.
Organizations should also document the replacement, check endpoint-management policies, and verify that no server or employee device still depends on the discontinued U.S. update path.
Bitdefender’s current scope
Bitdefender Total Security’s official support documentation describes protection across Windows, macOS, Android, and iOS, with operating-system-specific differences. Listed features include threat prevention, firewall and vulnerability tools on supported systems, ransomware remediation, SecurePass, and a VPN with 200 MB/day of encrypted traffic in the documented tier.
Do not compare the word “suite” with the word “antivirus” and assume equal coverage. Check the exact device count, platform, VPN allowance, password-manager needs, and renewal price. Bitdefender’s published terms say the first-term price can differ from the renewal price and that subscriptions automatically renew unless canceled.
Independent testing: useful context, not a universal winner
In AV-Comparatives’ February–May 2026 Real-World Protection Test, the tested Bitdefender Total Security build recorded a 99.5% protection rate across 400 cases, while the tested Kaspersky product recorded 99.8%. Those are results for that test period and builds, not a guarantee for every device or future release. They also do not override U.S. availability law.
The correct conclusion is not “Kaspersky is technically bad” or “Bitdefender always wins.” It is that test evidence, product scope, jurisdiction, support continuity, price, and user behavior all matter. We did not run this lab test ourselves.
If you are outside the United States
The U.S. restriction may not be the rule in your country. Before choosing either product, verify:
- Whether the product is legally sold and supported where you live.
- Whether signature and application updates are currently delivered.
- Which features are included in your local plan and language.
- Renewal pricing, device limits, and refund terms.
- Employer, school, government, or regulated-industry requirements.
Availability can change faster than an evergreen “best antivirus” article. Use the vendor’s regional site and an independent test’s exact product/version, not an old screenshot or affiliate comparison.
Safer replacement criteria
If you are leaving Kaspersky in the U.S., compare replacements on the criteria below rather than simply choosing the loudest brand:
| Criterion | What to verify |
|---|---|
| Update continuity | Current downloads, signature updates, and supported operating systems |
| Protection evidence | Recent independent test, exact product/version, methodology, and false alarms |
| Fit | Device count, platform coverage, firewall/parental controls, and accessibility |
| Privacy tools | VPN data allowance, password-manager recovery, and data-use policy |
| Cost | First term, renewal, taxes, refund window, and auto-renewal status |
| Exit plan | Export, uninstall, support, and how to avoid a protection gap |
Microsoft Defender may be an appropriate baseline for some Windows users; Bitdefender, ESET, Norton, and other products should be compared on current evidence and fit rather than asserted as universal winners. Start with the user’s operating system, risk, and budget.
Frequently asked questions
Can a U.S. resident still use Kaspersky?
The U.S. Commerce restriction covers the relevant Kaspersky antivirus and cybersecurity transactions with U.S. persons, and the transition for updates ended September 29, 2024. Replace it with an actively maintained option.
Does the restriction prove Bitdefender is more secure?
No. It establishes a legal and support distinction in the United States. Independent test results must be read separately and with their methodology and dates.
Is Bitdefender automatically the best replacement?
No. It is one candidate. Compare current coverage, features, renewal terms, and recent independent evidence against your actual devices.
Bottom line
For U.S. readers, this is primarily a support and availability decision: move from Kaspersky to an actively maintained product. Bitdefender is a reasonable candidate with documented multi-platform features and strong recent independent test results, but it is not a universal winner and its bundle limits and renewal terms matter. Outside the United States, verify local law and current support before making a choice.
Sources and verification date
This article was checked against U.S. BIS guidance, Bitdefender’s official documentation, and AV-Comparatives’ February–May 2026 test on August 2, 2026. Regulations, product availability, plans, and test results can change; verify current regional details before purchase or replacement.