Which endpoint protection is best at stopping ransomware?

There isn’t one universal winner—it depends on whether you mean a home PC or a business fleet. But in the latest ransomware-focused tests I found, Bitdefender is a strong all-around choice, with Kaspersky also scoring very well.

• Business endpoints: AV-TEST’s May–June 2025 ransomware and info-stealer scenarios gave Bitdefender, Kaspersky, and several other products perfect protection scores. AV-Comparatives’ 2025 business tests also showed strong results for Bitdefender and Kaspersky. (av-test.org)
• Larger organizations needing detection and response: Bitdefender, CrowdStrike, ESET, and others earned AV-Comparatives’ 2025 EPR certification. That’s a broader enterprise-attack evaluation, not a simple ransomware-only ranking. (av-comparatives.org)
• Home use: Bitdefender is a sensible pick; AV-TEST’s consumer ransomware scenarios also gave it a perfect score. (av-test.org)

Bottom line: If you want one name, start with Bitdefender. For a business, compare the specific plans and management features—not just the brand—and make sure you also have offline or immutable backups. No endpoint product can guarantee it will stop every ransomware attack.

There isn't one product that wins every independent test, but a few have strong recent results against ransomware.

Strongest recent lab results

• CrowdStrike Falcon: SE Labs' January 2026 report on Falcon gave it a perfect score across detection, protection, and legitimate-software accuracy, with no false positives. Its total accuracy was 3,596 out of 3,596 (100%). SE Labs is the primary source here. Some review sites repeat the 100% figure, but they add little independent verification.
• Acronis Cyber Platform: In AV-TEST's May/June 2026 Advanced Threat Protection test, it earned a protection score of 35 out of 35 and defended against all 10 advanced ransomware and infostealer scenarios tested on Windows 11. Acronis's own blog reports this, so check the AV-TEST page directly.
• Other business products: AV-TEST's Windows business round lists several vendors, including Kaspersky, Bitdefender, and ESET, with top-score results in its ransomware-related testing. Check the current AV-TEST business page for the latest per-product numbers.

Caveats

• MITRE ATT&CK Evaluations are the most rigorous emulation of attacker behavior, but MITRE does not rank vendors. In the latest published round (Enterprise 2025), 11 vendors took part and 2 detected all 90 substeps on the first run. Several large vendors, including SentinelOne and Palo Alto, announced they would not participate in the 2025 edition. A missing vendor doesn't mean it performs poorly.
• Consumer rankings from sites like Security.org and Gizmodo, which name Norton or TotalAV on top, come from their own small test setups. They're useful for home users but weaker evidence for businesses.
• Vendor claims such as "100% block rate" are often cherry-picked. Compare first-run results and false-positive rates, not headline numbers.

Practical advice

• For enterprises, Falcon and SentinelOne are often shortlisted. SentinelOne is frequently cited for automated rollback after an attack, though I didn't verify that in current testing.
• Ransomware usually starts with phishing or stolen credentials, so pair EDR with email filtering, MFA, least-privilege access, and offline or immutable backups. Phishing is still the leading entry point. In Proofpoint's October 2026 survey, 52% of respondents whose organizations had been hit cited email or phishing as the attack vector.
• Run a proof-of-concept against your own environment, using the vendor's ransomware and false-positive results as a starting point.

If you tell me whether this is for a home, small business, or enterprise, I can narrow the list.

There is no single "best" endpoint protection solution for every organization, as the right choice depends on your business size, existing security stack, and available in-house expertise. However, for 2026, industry leaders consistently recognized for their effectiveness in stopping ransomware through advanced behavioral AI and automated response include:

Top-Rated Solutions for Ransomware Prevention

• CrowdStrike Falcon: Widely regarded as a premier choice for high-value targets, it is noted for its deep threat intelligence, AI-driven prevention, and robust Endpoint Detection and Response (EDR) capabilities.
• SentinelOne Singularity: Highly favored for its autonomous response features and "one-click" rollback capabilities, which are particularly valuable for organizations that may not have a 24/7 Security Operations Center (SOC).
• Microsoft Defender for Endpoint: An excellent option for organizations already heavily invested in the Microsoft 365 E5 ecosystem due to its native integration and cost-effectiveness.

What Makes Them Effective?

Modern ransomware protection has moved far beyond "traditional antivirus" (which only looks for known file signatures). The most effective solutions in 2026 share these critical features:

• Behavioral AI: Instead of waiting for a file to be identified as malicious, these tools look for suspicious behavior (e.g., unauthorized encryption patterns or unusual process activity) to stop attacks in real-time.
• Automated Response & Rollback: Leading platforms can automatically isolate an infected device to prevent lateral movement and use snapshots to "roll back" files to their pre-encryption state.
• EDR/XDR Capabilities: These provide deep visibility into the entire attack chain, allowing security teams to see how an attacker entered the network and what they touched, rather than just blocking a single file.

Strategy: Protection is Not Enough

It is important to note that endpoint protection alone cannot stop every attack. Security experts recommend a "defense-in-depth" approach:

1. Immutable Backups: If all else fails, you need clean, unchangeable backups (e.g., Rubrik, Veeam) to restore your data without paying a ransom.
2. Managed Services (MDR): Many small-to-mid-sized businesses struggle to manage these complex tools. If you lack a full-time security team, consider a Managed Detection and Response (MDR) service, which provides the expertise to monitor and act on alerts 24/7.
3. Layered Security: Combine your endpoint protection with email security (to block phishing), identity management (MFA), and rigorous patch management.

Recommendation: If you are choosing a solution, prioritize those that offer a free trial or proof-of-concept to test how they perform in your specific environment. Evaluate them not just on their "prevention" scores, but on how easily your team can investigate alerts and perform recoveries when a potential threat is detected.

There isn’t one universally “best” product, but recent independent tests point to several strong choices:

• For ransomware-specific enterprise protection: Symantec Endpoint Security Complete is a standout. In SE Labs’ test using 556 payloads from 15 ransomware groups, it detected and blocked every sample, with no false positives. ¹²
• Other strong enterprise options: Carbon Black Cloud also reportedly stopped all attacks in that test. ¹⁰ SE Labs later gave Palo Alto Cortex XDR an AAA rating and a 100% total accuracy score in a separate ransomware test. ¹¹
• For general business endpoint protection: SE Labs’ Q4 2025 testing reported 100% protection accuracy for products from Broadcom, Sophos, CrowdStrike, Kaspersky, and Microsoft—though that test covered a broader mix of threats, not ransomware alone. ⁹

Practical takeaway: If you’re choosing for an organization, compare products against your environment, staffing, and management needs; test configuration and response capabilities matter as much as the headline score. For a home PC, enterprise EDR may be unnecessary—keep your built-in protection and software updated, and maintain offline or otherwise isolated backups. These results are snapshots from specific lab tests, not a guarantee against every attack.