Apple Accuses OpenAI of Destroying Evidence

Apple filed a court brief on August 31, 2026 accusing OpenAI of actively destroying evidence in their ongoing trade secrets dispute — and the filing's centerpiece is a recovered MacBook that reportedly contained a confidential Apple circuit schematic downloaded by former engineer Chang Liu. The brief, submitted in support of Apple's motion for expedited pretrial fact-finding, raises the stakes significantly in a lawsuit already targeting one of the highest-profile talent migrations in Silicon Valley history.

The Claim

Apple's legal argument rests on two interlocking accusations. First, that Liu — who left Apple in January and joined OpenAI — did not merely take proprietary knowledge in his head. According to the filing, he downloaded a specific Apple circuit schematic and then incorporated it into work he performed at OpenAI. That distinction matters legally: abstract knowledge of how something works is harder to litigate than a concrete file transfer of a specific engineering document. The circuit schematic gives Apple a traceable artifact rather than an inference.

Second, and more explosive, Apple claims that after Liu learned in June that Apple had opened an internal investigation into him, he directed a colleague at OpenAI — identified as Yu-Ting Peng — to destroy evidence. Multiple reports, including Bloomberg's account of the filing, indicate that Peng agreed to do so. Apple argues in the brief that forensic artifacts such as logs, metadata, and usage records are inherently transient — the kind of data that gets overwritten during normal system operation — and that without expedited discovery, the evidentiary record will continue to degrade.

The MacBook at the center of the forensic analysis had been in OpenAI's possession since the original lawsuit was filed in July. Apple says OpenAI only handed the device over on August 21st — weeks after it should have been preserved and produced. The filing also alleges that Liu's access to Apple's third-party cloud storage was never properly revoked after he left the company, and that Liu and others at OpenAI were aware of that continued access. Apple's attorneys are seeking an injunction that could block OpenAI's hardware work entirely, a remedy that would carry enormous financial consequences for a company that has been pushing aggressively into device and chip development.

What We See

Our read is that the circuit schematic allegation is the genuinely strong element here. Trade secret cases routinely collapse when the stolen material is too vague to define — a general methodology, a design philosophy, a way of thinking about a problem. A downloaded schematic is none of those things. It has a filename, a timestamp, a transfer record, and presumably a fingerprint that can be matched against what appeared in Liu's OpenAI work. If Apple's forensic analysis holds up under scrutiny, the evidentiary foundation is considerably more solid than the typical "he knew too much" argument.

The companion allegation — that Liu directed Peng to destroy forensic evidence — is harder to evaluate from the outside, but if contemporaneous messages exist documenting that instruction, it shifts the legal posture of the entire case. Courts treat spoliation of evidence (the intentional destruction of material relevant to litigation) seriously, sometimes imposing sanctions that are more damaging than the underlying claim. Apple appears to be laying the groundwork for exactly that argument.

What is notable about OpenAI's response is the specificity of its framing. Rather than denying the underlying facts outright, OpenAI's filing described the situation as "a mess of Apple's own making" — pointing to Apple's own offboarding process as the reason Liu retained cloud storage access after departure. That is a meaningful concession hidden inside a counterattack: OpenAI is not claiming the access never happened, it's arguing that Apple created the conditions for it. Whether that defense holds legally is a separate question, but it does raise a fair operational point. Access credentials that survive an employee's departure are an offboarding failure, not evidence of malicious intent on the part of the new employer.

The broader context is that more than 400 former Apple engineers now work at OpenAI. Apple is not litigating a single defection; it is drawing a line around a pattern. The injunction request targeting OpenAI's hardware ambitions is the pressure mechanism — it threatens something OpenAI actually cares about, which is a more effective litigation posture than a damages claim alone.

Where It Falls Short

The case still has significant unknowns that neither Apple's filing nor the corroborating coverage resolves. The specific nature of the "tool at OpenAI that shares a name with an internal Apple engineering application" — mentioned in the Yahoo Finance summary of the court brief — is left frustratingly vague. If Liu built or used a substantively similar tool at OpenAI, that is potentially damning. If it merely shares a name, that is considerably less so. The distinction between "naming coincidence" and "functional replica" is exactly the kind of detail that will determine whether this element of the case survives motion practice.

Bloomberg's coverage is paywalled beyond the opening paragraphs, which limits independent verification of some of the finer procedural details. The Yahoo Finance piece, sourcing from Quartz, confirms the core facts — the circuit schematic, the expedited discovery motion, Peng's alleged agreement to destroy evidence — but adds limited analytical depth. Until the full court filing is publicly accessible, the record available to outside observers is still partial. That is not a reason to dismiss Apple's claims, but it is a reason to hold the more dramatic framing lightly. "Destroying evidence" is a serious allegation that carries specific legal meaning; whether the underlying conduct actually meets that threshold under California law is something a judge, not a press cycle, will ultimately decide.

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