Anthropic Acquires Confidential AI Startup Opaque Systems
Anthropic has completed the acquisition of Opaque Systems, a startup specializing in confidential and verifiable artificial intelligence technology.
Radwan AbdulhadiEditor and technology writer
Anthropic Acquires Opaque Systems
Anthropic has acquired Opaque Systems, a company that developed specialized technology enabling artificial intelligence systems to utilize sensitive data while keeping it securely protected by the underlying hardware. According to SecurityWeek, Opaque announced the transaction, confirming that its team is officially joining Anthropic to carry its work forward. Financial terms of the acquisition were not disclosed by either party involved in the deal.
Origins and Evolution to Verifiable AI
Opaque originally began as a research project a decade ago at UC Berkeley’s RISELab. Its founders include Ion Stoica, who co-founded Databricks and Anyscale, alongside Raluca Ada Popa, an encryption and systems security researcher who currently works at Google DeepMind. Aaron Fulkerson later joined the organization as its CEO in October 2023. Over time, the startup transitioned its confidential computing research into practical technology deployed in production AI environments. As artificial intelligence continued to evolve, the company recognized that protecting standalone data and models was no longer sufficient for organizations demanding higher standards of security.
"As AI evolved, so did the problem we set out to solve. Protecting data and models was no longer enough. Organizations also needed a way to independently verify how AI systems and agents behaved," Opaque explained regarding the shift in their strategic roadmap. This realization propelled the company to expand beyond standard confidential AI into verifiable AI, which aims to replace traditional trust assumptions with cryptographic evidence detailing precisely what code ran, where it executed, and under what operational policies.
Open Source Community Projects and Ecosystem Work
Alongside its proprietary technology deployments, Opaque engaged extensively with the wider technology community on various open-source initiatives designed to enhance trust and security for modern AI models and autonomous agents. Among these notable community-driven projects are the Agent Governance Toolkit, an open standard for runtime attestation known as TRACE, Confidential MCP, and the Weight Custody Manifest. These tools were developed to help address growing safety, transparency, and governance requirements across the broader artificial intelligence sector.
Funding History and Customer Base
Prior to the acquisition by Anthropic, Opaque achieved significant financial backing within the technology market. Earlier this year, the company successfully secured a $24 million Series B funding round, which valued the startup at approximately $300 million. Before winding down operations, Opaque counted major enterprise names among its client roster, including acquirer Anthropic itself, alongside corporate giants ServiceNow and Accenture.
Operations Wind Down and Future Outlook
Following the completion of the agreement, updates to Opaque's official website confirmed that its core team is joining Anthropic to continue development efforts, while Opaque Systems as a corporate entity is actively winding down its operations. At the time of the announcement, the startup had not yet clarified what this corporate wind-down process means for its existing enterprise customers and ongoing service agreements. The transaction highlights the continuous consolidation and talent acquisition trends shaping the high-stakes enterprise artificial intelligence landscape.
Sources
- SecurityWeekAnthropic Acquires Confidential AI Startup Opaque Systems
Continue chronologically
Related entity coverage
Related stories
Anthropic Partners with Accenture for AI Safety Evaluations
Anthropic has tapped Accenture to provide third-party safety evaluations for its frontier AI models, marking a major step in slowing AI development.
Anthropic's Claude Game Cloning Ban Won't Stop AI Copying Boom
Anthropic added new system prompt rules to Claude to block specific video game cloning, but the measure is unlikely to stem a massive wave of AI copying.
Anthropic Updates Claude to Stop Recreating Existing Video Games
Anthropic updates its Claude AI to block the recreation of existing video games following a surge of AI-decompiled browser games and copyright issues.
How to Use Anthropic's New Claude Duet Proactive AI Agent
Learn how to join the waitlist, access pricing details, and use Anthropic's new proactive personal AI agent, Claude Duet, during its preview phase.
