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Former SK Hynix employee jailed for leaking information to a Chinese firm, Yonhap reports

By Thomson Reuters Aug 8, 2026 | 8:23 PM

SEOUL, Aug 9 (Reuters) – A former employee at SK Hynix has been sentenced to 18 months in ​jail for leaking information on semiconductor ‌manufacturing technology to a Chinese firm, the Yonhap news agency reported on Sunday.

The Seoul High Court made the ruling in an appeal ‌case ​against the defendant, ⁠upholding the lower court’s ⁠sentence, for leaking classified information on so-called CMOS image sensors, a technology used for non-memory chips in smartphone ​cameras and laptops, to a Chinese company in 2022, Yonhap said.

The court ⁠found that the employee, ⁠who formerly worked at SK ​Hynix’s office in China, printed out or ​took photos of documents containing trade ‌secrets downloaded from the company’s internal server, a violation of its security rules, according to Yonhap.

The defendant disclosed some ⁠of the information in a resume submitted to a Chinese firm, Yonhap said, without naming ⁠the ‌Chinese company.

The man admitted all ⁠of the charges and most ​of ‌the information he took was ​retrieved by ⁠the company, the report said.

The Seoul High Court did not immediately respond to a Reuters request for comment outside business hours.

(Reporting by Heejin Kim; Editing by ​Lincoln Fesat.)