Apple Inc. has filed a federal lawsuit accusing OpenAI of orchestrating a systematic theft of trade secrets through former employees, a legal move that could disrupt the AI company's planned stock market debut and hardware expansion. The San Jose, California federal court complaint names two ex-Apple executives—Tang Tan, now OpenAI's chief of hardware, and Chang Liu, a senior engineer—alleging they smuggled confidential supplier data, circuit board designs, and manufacturing strategies when they defected to the ChatGPT maker.
Core Facts of the Lawsuit
The 12-page complaint filed in California's Northern District Court outlines what Apple calls a "coordinated strategy" to extract proprietary information. According to the filing, Tang Tan—who served as Apple's Vice President of Product Design for iPhone and Apple Watch until 2024—downloaded supplier chain documents to a personal email account before resigning. Apple's internal investigation revealed Tan later instructed job candidates still employed at the Cupertino-based iPhone maker to bring physical components to OpenAI interviews, framing them as "demonstration sessions" designed to harvest additional confidential details.
Chang Liu faces even graver accusations. The complaint alleges Liu, who left Apple in 2026 to join OpenAI, exploited an authentication vulnerability in Apple's corporate network, remotely accessing a former colleague's workstation to download over 1,000 pages of technical documents. These files reportedly included schematics for complex circuit boards used in unreleased Apple hardware. Apple claims Liu coached the still-employed colleague on how to download files without triggering security alerts, advising specific techniques to evade detection by the company's threat intelligence team.
The lawsuit positions these incidents as deliberate acts tied to io Products, the hardware startup co-founded by legendary Apple designer Jony Ive alongside Tan, Evans Hankey, and Scott Cannon in 2024. OpenAI acquired io Products in May 2025 for $6.5B—the AI lab's largest acquisition—to anchor its push into consumer electronics. The deal placed Tan at the helm of OpenAI's hardware division, with Ive's design collective LoveFrom retaining creative oversight across all OpenAI products.
What This Means for Tech Companies in Portugal
Portugal's expanding tech sector—anchored by Lisbon's Web Summit ecosystem and Porto's engineering talent pools—faces similar intellectual property vulnerabilities. The Apple-OpenAI dispute illustrates three critical lessons for Portugal-based startups and multinationals:
Contractual Protections: Portugal's labor law permits non-compete clauses (cláusulas de não concorrência) but limits enforcement to two years maximum under Article 136 of the Labor Code. Crucially, companies must pay employees a salary equivalent to the restriction period for the clause to be enforceable—meaning a two-year non-compete requires two years of compensation if triggered. This differs markedly from other jurisdictions. Companies must pair these with robust confidentiality agreements that survive employment termination, particularly when hiring from competitors. Portuguese courts generally uphold reasonable restrictions if they include this financial compensation and are narrowly tailored to protect legitimate business interests.
Access Revocation Protocols: The complaint reveals Liu accessed Apple's network months after his departure. For Portugal-based firms, the GDPR imposes strict duties to secure personal data, but trade secrets require parallel safeguards under Directive (EU) 2016/943, transposed into Portuguese law through national regulations on trade secret protection. Immediate credential revocation and endpoint monitoring become legally defensible necessities, not optional best practices. Companies operating in Portugal must document these protocols to demonstrate compliance if litigation arises.
Recruitment Due Diligence: OpenAI's alleged encouragement of candidates to extract materials mirrors tactics seen in Portugal's competitive automotive tech and renewable energy sectors. Companies must implement pre-hire audits that screen for potential misappropriation, including declarations that candidates possess no prior employer's confidential information—enforceable under principles of Portuguese Civil Code on unjust enrichment. This protects both the hiring company and the employee, establishing clear boundaries.
Why This Matters Beyond Portugal
• Corporate espionage claims involve over 400 former Apple staff now at OpenAI, raising questions about how tech giants protect intellectual property in Portugal's growing startup ecosystem.
• OpenAI's $852B valuation and anticipated IPO face legal jeopardy, potentially affecting global tech investment sentiment that influences Portugal's venture capital inflows.
• Hardware development shortcuts allegedly used by OpenAI mirror risks Portugal-based companies face when hiring from competitors without robust compliance protocols.
The $852B Question: OpenAI's IPO at Risk
OpenAI's current private valuation sits at approximately $852B, reflecting investor confidence in its AI leadership and diversification into hardware. The company telegraphed plans to launch its first consumer devices in 2026, though recent reports indicate delays pushing releases to 2027 amid trademark disputes over the "io" branding. Apple's lawsuit arrives at a precarious juncture: institutional investors scrutinize intellectual property litigation as a red flag in pre-IPO due diligence.
The complaint stops short of specifying damages but requests injunctive relief barring OpenAI from exploiting Apple's trade secrets, plus unspecified monetary compensation. Legal analysts note similar cases—such as Waymo v. Uber in 2017, which settled for $245M—demonstrate how trade secret theft claims force defendants into costly settlements or protracted discovery battles that expose proprietary strategies.
For Portugal's institutional investors and pension funds evaluating exposure to AI sector equities, the Apple lawsuit underscores concentration risk. OpenAI's pivot to hardware represents a deliberate move away from pure software licensing, aiming to capture margin-rich device sales similar to Apple's ecosystem model. If courts grant Apple's request for injunctions, OpenAI's hardware roadmap—and by extension, its growth narrative—suffers material setbacks.
OpenAI's Defense and the Broader Context
In a terse statement, an OpenAI spokesperson said the company "has no interest in other companies' trade secrets" and continues reviewing the allegations. The response mirrors standard corporate crisis communication: acknowledge awareness, deny wrongdoing, avoid specifics. Notably, OpenAI did not address the substance of claims regarding Tan and Liu's conduct, instead emphasizing its focus on "building innovative technology."
The lawsuit caps a dramatic reversal in Apple-OpenAI relations. The two companies announced a partnership in June 2024 to integrate ChatGPT into iOS, iPadOS, and macOS via Apple Intelligence features, positioning the collaboration as a mutual benefit: Apple gained cutting-edge generative AI without building foundational models, while OpenAI secured distribution to 1.5B+ active Apple devices. That alliance now appears irreparably fractured, with Apple's complaint describing the trade secret theft as "just the tip of the iceberg" and asserting it possesses only limited visibility into OpenAI's internal practices.
Legal Precedents and Portugal's IP Framework
Portugal's intellectual property regime mirrors broader EU standards, with trade secrets protected under Directive (EU) 2016/943, transposed into national law. The directive mandates member states provide judicial remedies for misappropriation, including injunctions and damages calculated on lost profits or unjust enrichment. Portuguese courts have granted preliminary injunctions in similar disputes, particularly in pharmaceutical and automotive sectors where employee mobility poses acute risks.
The Apple case also echoes Portugal's own battles with employee defections. In 2019, Volkswagen Autoeuropa reportedly pursued legal action against former engineers who joined a Chinese EV startup, alleging improper retention of production line specifications. While details remain sealed under confidentiality orders, the case established Portuguese courts' willingness to enforce exit protocols and penalize deliberate circumvention.
For multinational employers operating in Portugal's special economic zones—such as the Free Trade Zone of Madeira—the Apple lawsuit serves as a reminder that hardware development accelerates IP risk. Companies investing in R&D tax incentives under SIFIDE II must implement compartmentalized data access and periodic audits to ensure compliance, lest they inadvertently facilitate misappropriation by transient staff.
The Scale of the Problem: 400 Ex-Apple Employees at OpenAI
Perhaps the lawsuit's most startling revelation is Apple's acknowledgment that more than 400 former employees now work at OpenAI. The complaint concedes "it is not surprising that some have knowledge of confidential information" but draws a sharp distinction between passive retention of general expertise and active exploitation of specific trade secrets. Apple alleges OpenAI crossed that line by creating "an environment that encouraged and rewarded" the sharing of proprietary data.
This scale of talent migration reflects Silicon Valley's hyper-competitive labor market, where AI specialists command salaries exceeding $500K annually and equity packages that dwarf traditional tech roles. For Portuguese tech firms, the dynamic presents both opportunity and peril: attracting returning diaspora talent with Apple or Google experience brings sophistication, but also heightened legal exposure if onboarding processes lack rigor.
What Comes Next
The case now enters discovery, where Apple will likely subpoena internal OpenAI communications, recruitment materials, and device prototypes to substantiate its claims. Legal timelines suggest a 12-to-18-month path to trial unless parties settle, with preliminary injunction hearings possible within 60 days if Apple demonstrates irreparable harm. OpenAI's IPO ambitions, reportedly targeting late 2026 or early 2027, may hinge on resolving this dispute or convincing underwriters that litigation risk is manageable.
For observers in Portugal's investment community, the case offers a cautionary tale: even the world's most valuable AI company can stumble over basic compliance failures. As Lisbon and Porto position themselves as European AI hubs—leveraging tax incentives and multilingual talent—the Apple-OpenAI battle underscores that innovation without integrity invites existential legal risk.
