Three of the cybersecurity industry’s most prominent vendors, Microsoft, SentinelOne, and Palo Alto Networks, have announced they will not participate in the 2026 MITRE ATT&CK Evaluations.
The coordinated withdrawal marks a significant shift in how leading security companies approach independent product validation, with all three citing a strategic reallocation of resources toward internal innovation and customer-focused initiatives.
The MITRE ATT&CK Evaluations are widely regarded as a crucial industry benchmark, providing transparent and objective assessments of security product capabilities against simulated real-world attack scenarios.
For years, strong performance in these evaluations has been a key marketing and validation tool for vendors. However, the three giants have independently concluded that their resources are better spent elsewhere this year.
In its official statement, Microsoft announced that after “extensive deliberation,” it decided to forgo this year’s evaluation to “focus all our resources on the Secure Future Initiative and on delivering product innovation to our customers”.
Similarly, SentinelOne stated its decision came after a “thorough review internally” and was made to “prioritize our product and engineering resources on customer-focused initiatives while accelerating our platform roadmap”.
Palo Alto Networks, a consistent participant for six years, echoed this sentiment. The company, which achieved 100% technique-level detections with its Cortex XDR platform in previous evaluations, said it will “adjust the focus of our engineering and testing resources” to “further accelerate critical platform innovations that directly address our customers’ most pressing security challenges”.
Despite stepping back from the high-profile MITRE evaluations, all three companies reaffirmed their commitment to independent, third-party testing through other avenues.
Palo Alto Networks highlighted its continued participation in assessments from organizations like SE Labs, where it earned an AAA rating for 100% ransomware prevention, and AV-Comparatives, which awarded its Cortex XDR a unique dual certification.
This collective move suggests a broader trend where major vendors are diversifying their validation strategies. While they continue to value their relationships with MITRE, the companies are increasingly prioritizing agile development cycles and direct responses to the rapidly evolving threat landscape over participation in standardized annual evaluations.
The decisions underscore the dynamic nature of the cybersecurity industry, where balancing independent benchmarking with accelerated innovation has become a critical strategic consideration.
The withdrawals have sparked discussion within the cybersecurity community about the future of standardized testing and whether other vendors will follow suit.
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