Protect AI (now part of Palo Alto Networks)
AI/ML security company (model scanning, MLSecOps, AI-SPM) acquired by Palo Alto Networks for $634.5M and folded into Prisma AIRS.
Visit Website ↗ + Add to Compare Claim This CompanyOverview
Protect AI built tools to discover, scan and secure machine learning models and AI applications end-to-end, including model file scanning for embedded malicious code, an MLSecOps platform for securing ML pipelines, and AI security posture management capabilities. Its ModelScan and Guardian tooling were widely used in the open-source ML security community before the acquisition.
Palo Alto Networks completed its acquisition of Protect AI on July 22, 2025, for total consideration of $634.5M ($607.4M cash plus $27.1M in replacement equity awards), per Palo Alto Networks’ own investor disclosures. Protect AI’s technology and team have since been absorbed into Palo Alto Networks’ Prisma AIRS platform; Protect AI’s website now redirects directly to the Prisma AIRS product page, confirming the product no longer operates as an independent brand.
Innovation Matrix Assessment
Shipped open-source scanning tools (ModelScan) and an MLSecOps platform that gained real developer adoption ahead of being acquired.
Model-scanning tooling addressed a concrete, immediate risk (malicious model files) that ML teams could act on directly.
A $634.5M acquisition price, disclosed in Palo Alto Networks' own SEC-reportable investor materials, is one of the largest and most concrete validation events in this entire category.
Now fully absorbed into an existing large security platform (Prisma AIRS) rather than continuing as an independent AI-native disruptor. However, Protect AI is now part of Palo Alto Networks (NASDAQ: PANW), a public company with a market cap of roughly $100B+ (per nasdaq.com), which is the scale of an established incumbent rather than an emerging category disruptor, so this dimension is scored more conservatively.
Open-source tools saw real community usage and vulnerability disclosures, but no independent efficacy benchmark of the commercial platform was found.
Model supply-chain scanning remains core to any AI security program as organizations consume more third-party and open-source models.
Why CISOs Should Care
Its former open-source scanning tools remain a common first step for catching malicious or tampered model files before they reach production, now backed by Palo Alto Networks' scale.
What Makes It Different
Originated as one of the first vendors to treat ML model files themselves (not just code or containers) as a scannable artifact class with dedicated open-source tooling.
The Matrix Verdict
68/100 — INCREMENTAL INNOVATOR
Strong Performer on momentum given the acquisition price, but this profile is now effectively a historical/transitional record — the standalone company no longer exists, so forward-looking category disruption is scored conservatively.
Editorial Note: Claims vs. Verified Findings
Acquisition value ($634.5M) is confirmed via Palo Alto Networks' own press materials. Protect AI's founding year, headcount at acquisition, and pre-acquisition total funding could not be independently verified in this research pass and are marked Undisclosed rather than estimated.
Sources
Alternatives to Protect AI (now part of Palo Alto Networks)
Adaptive Security
AI-driven platform that simulates deepfake, voice, and multichannel social-engineering attacks to train and test organizations against next-generation phishing.
Quilr
Early-stage agentic AI security startup building a 'Service-as-Software' platform to guard against human-related breaches and secure AI agent…
Zenity
Governance and security platform for AI agents and low-code/no-code development, securing agent identity, permissions and behavior across the…
Gray Swan AI
Carnegie Mellon-linked startup building automated red-teaming and runtime guardrails that frontier AI labs use to stress-test their models…
Tenzai
An agentic AI penetration testing startup building autonomous 'AI hackers' to find and validate exploitable vulnerabilities at a…
Reco
Reco secures the "agentic ecosystem" — mapping what AI agents can access across SaaS and enterprise apps, detecting…