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Japanese Mitsubishi is known to the world as an active automobile maker. But Mitsubishi is serving its home nation in many homogeneous ways. Mitsubishi Electric has yesterday disclosed a major data breach in its network, owing to 200MB of data being stolen by unknown adversaries of its personal and corporate confidential information.

Early Local Reports

The hack was publicised just yesterday, assuring no technical information on its defence contracts or business partners have leaked. Though Mitsubishi didn’t claim anyone responsible yet, the local newspapers Nikkei and Asahi Shimbun, who first published this story made up analysis and resulted in Chinese cyber-espionage groups to be blamed. The alleged group as per them is Tick (a.k.a Bronze Butler) which had an active past of attacking Japanese firms.

Mitsubishi Electric Disclosed Data Breach, Leaking Confidential Personal Data
Image by Needpix

As per local media, the breach was realised when a suspicious file was discovered in their company servers, and when traced back, led to a compromised employee account! This minor access led them onto the entire network and accessing over tens of computers across all the departments and steal around 200MB sized business documents, as reported by Nikkei. Mitsubishi later admitted of data exfiltration.

The Public Statement

The hack was reported to happen in June last year, and Mitsubishi started investigating in September and announcing publicly just yesterday. In a statement it released, it said,

Our network receives unauthorized access by third parties, leaking personal information and corporate confidential information. After recognizing suspicious device behavior on June 28 last year, We took measures such as restricting external access. As a result of an internal survey, sensitive information on social infrastructure such as defense, We have confirmed that no technical information or important information related to business partners has been leaked.”

According to another newspaper, Mitsubishi has reported this hack privately to its major customers being disclosing to the public as yesterday. Though common in other nations, a hack of such is considered to be a shameful incident in Japan, and Mitsubishi is assigned with many government projects as power grids, telecom, military equipment etc.

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