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Updated through August 18, 2026: Intel’s 2021 lawsuit accused former product-marketing engineer Varun Gupta of copying thousands of confidential files before joining Microsoft and accessing them during negotiations for customized Xeon processors. The later criminal case ended with Gupta’s guilty plea to possessing stolen trade secrets. The public record does not establish that Microsoft was sued, criminally charged, or knowingly directed the conduct.
What happened
Gupta worked for Intel from approximately July 2010 until January 2020, in product marketing and related strategic roles. Intel’s complaint says he announced his resignation, copied about 3,900 documents to two personal USB drives around his departure, and began working for Microsoft on January 21, 2020—four days after leaving Intel.
Intel alleged that the files included confidential pricing strategies, commercial terms for customized Xeon processors, technical product parameters, manufacturing capabilities, and material prepared for major customers. Those categories can be commercially valuable because a buyer that knows a supplier’s internal pricing logic and technical limits may have greater leverage in a large procurement negotiation. That explains the alleged significance; it does not prove that Microsoft obtained a particular discount or other measurable benefit.
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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteIn February 2025, the U.S. Department of Justice announced that Gupta had pleaded guilty to possessing trade secrets taken from his former employer. Prosecutors described approximately 4,000 files and said Gupta possessed and accessed information about customized processor design and pricing while representing his new Washington-based employer in negotiations with the semiconductor company. The DOJ release did not name Intel or Microsoft, but the surrounding civil record identifies them. Read the DOJ announcement.
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What Intel alleged about the files and Microsoft connection
The original federal complaint, filed in the District of Oregon on February 5, 2021, alleged that Gupta:
- Copied roughly 3,900 documents to at least two personal removable drives;
- Kept the material after leaving Intel;
- Connected a Western Digital drive to a Microsoft-issued Surface at least 114 times between February 3 and July 23, 2020;
- Opened more than 100 documents in a folder labeled “Varun Intel Tenure”; and
- Accessed information while participating in “head-to-head” negotiations for substantial purchases of customized Xeon processors on Microsoft’s behalf.
These details come from Intel’s civil pleading and should be treated as allegations unless independently confirmed by later criminal filings. The DOJ later confirmed unauthorized possession and access in broad terms, but its announcement did not repeat every forensic detail. Intel and Microsoft reportedly cooperated in investigating the activity.
The file-count difference is not necessarily a contradiction. Intel’s complaint used approximately 3,900 documents, while the DOJ referred to approximately 4,000 files. The government may have rounded the number or used a different counting method. The safest wording is to attribute each figure to its source.
What the record does not establish
Microsoft was not the named defendant in Intel’s civil case. The sources reviewed do not show that Microsoft executives authorized the copying, knew about it, uploaded the files into a corporate system, or were criminally charged. The narrower, supportable statement is that Intel alleged Gupta used or accessed Intel information while representing Microsoft in negotiations, and that Microsoft assisted Intel’s investigation.
Likewise, “top secret” in some coverage should not be confused with government-classified information. The dispute concerns corporate confidential information and alleged trade secrets, not national-security classification. Claims that Gupta took the files specifically to secure his Microsoft job remain inference or reported theory, not an established fact in the DOJ announcement.
The civil lawsuit
Intel sued Gupta under the federal Defend Trade Secrets Act of 2016 and asserted related contractual and state-law theories according to the complaint and contemporary reporting. Intel asked the court to:
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- Restrict use, copying, or disclosure of the information;
- Preserve computers, drives, accounts, and other evidence;
- Require return or destruction of Intel materials;
- Award damages and legal fees; and
- Grant other emergency and permanent relief.
A stipulated temporary restraining order was entered on February 16, 2021. An emergency order is not a final finding that every allegation is true; it is interim relief designed to protect evidence and prevent potentially irreparable harm while a case proceeds. The civil docket, complaint, and restraining order provide the primary court documents.
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The criminal case and outcome
According to the DOJ, Gupta was charged by criminal information on December 26, 2024, and pleaded guilty on February 20, 2025, to possessing stolen trade secrets. At the plea-announcement stage, the offense carried a statutory maximum of 10 years in prison, a $250,000 fine, and three years of supervised release.
Later reporting by Tom’s Hardware says Gupta received two years of probation and a $34,472 fine in August 2025. The same report says the civil dispute with Intel was separately resolved for approximately $40,000. Those figures come from secondary reporting, not the DOJ announcement, and the criminal fine and civil settlement should not be treated as the same payment. See the sentencing report.
Timeline
| Date | Event |
|---|---|
| July 2010 | Gupta begins work at Intel, according to the later DOJ account. |
| January 2020 | He leaves Intel and plans to join a Redmond, Washington-based technology company. |
| January 21, 2020 | Intel’s complaint says he starts at Microsoft. |
| February 3–July 23, 2020 | Intel says a personal Western Digital drive was connected to his Microsoft Surface at least 114 times. |
| February 5, 2021 | Intel files its federal civil lawsuit in Oregon. |
| February 16, 2021 | The court enters a stipulated temporary restraining order. |
| December 26, 2024 | Gupta is charged by criminal information. |
| February 20, 2025 | He pleads guilty, according to the DOJ announcement issued the next day. |
| August 2025 | Secondary reporting says he receives probation and a $34,472 fine. |
Why pricing and design information can be trade secrets
Under trade-secret law, information generally must derive economic value from not being generally known and be subject to reasonable efforts to keep it secret. Internal price structures, customer-specific terms, manufacturing constraints, and design capabilities can meet those criteria when competitors or negotiating counterparties could use them to improve their position.
Several legally distinct actions matter: copying, possessing, accessing, using, and disclosing information are not identical. A person may create liability by retaining protected files after employment even if the files are never posted publicly. Using confidential information in a negotiation can also be significant, but the precise legal consequences depend on the facts, the applicable statute, and what the prosecution or civil plaintiff proves.
Lessons for employees and employers
The case illustrates a recognizable insider-risk pattern rather than proving anything about Intel’s current security posture:
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- Offboarding: Revoke access promptly, collect company devices, and give departing employees written instructions not to retain or use prior-employer materials.
- Removable media: Restrict or log USB copying, especially bulk transfers near a resignation date.
- Monitoring: Investigate unusual downloads and repeated access to personal storage, while respecting employment, privacy, and labor-law limits.
- Recruiting and onboarding: Tell new hires not to bring former-employer files and provide approved alternatives for rebuilding work product.
- Evidence preservation: Secure forensic images, access logs, drives, and communications quickly when a suspected transfer is discovered.
- Negotiation controls: Ensure commercial teams use authorized data sources rather than an employee’s personal archive.
For employees, the practical rule is simple: do not take files, pricing sheets, customer lists, source material, or other documents when changing jobs—even if you believe you created them or will use them only privately. For employers, a new hire’s possession of a competitor’s documents is a warning sign, not a competitive advantage that can safely be used.
The accurate bottom line
Intel alleged in 2021 that Gupta copied thousands of confidential files and later accessed Intel pricing and processor information while negotiating for Microsoft. Gupta’s 2025 guilty plea makes it accurate to say he possessed stolen trade secrets. It remains inaccurate to describe Microsoft as a proven co-conspirator, a defendant in Intel’s case, or a company shown by these sources to have knowingly directed the theft.
Frequently Asked Questions
Was Microsoft sued or charged in this case?
No. Intel’s civil defendant was Varun Gupta, and the sources reviewed do not show Microsoft being sued or criminally charged over the alleged theft.
How many Intel files did Gupta take?
Intel’s complaint alleged approximately 3,900 documents; the DOJ later described approximately 4,000 files. Attribute the figures rather than treating either as an exact, independently reconciled total.
Did Gupta go to prison?
Later reporting says he received two years of probation and a $34,472 fine. The DOJ’s plea announcement stated the statutory maximums but did not provide those later sentencing details.
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