Reported breach

Nara Prefecture data breach

JPJapan · 奈良県

Security NEXT reported a data breach at Nara Prefecture (Japan) on 5 November 2026. It affected 363 people.

People affected: 363people
Reported: 5 November 2026News report

What was exposed 4

Dates of birth
Names
Addresses
Management information

How it happened

How: Lost or stolen device USB memory that was used to transfer data between the pharmaceutical drug and medical device application/review system and the prefectural terminal, whose whereabouts are unknown. source
Our translation from Japanese
医薬品医療機器申請・審査システムと同県端末間でデータを受け渡すために使用していたUSBメモリの所在がわからなくなっているもの。

Sources 1

News reportSecurity NEXTBusiness USB memory containing personal information goes missing - Nara Prefecture (our translation from Japanese)5 November 2026 · 363 people
Archived copy Wayback Machine, 5 November 2026

News reports are read by an AI model; every fact taken from an article was checked word for word against it, and anything it could not find was dropped. · Corrections and changes

If Nara Prefecture had your data

Look for Nara Prefecture’s own notice or letter: it should say what of yours was involved. Keep it.
Your home address is out: be wary of letters, parcels or visitors that mention Nara Prefecture, and of texts asking for a “delivery fee”.
Expect scams that use your details: calls, texts or emails pretending to be Nara Prefecture, your bank or the police. Never give codes or passwords, never approve a sign-in you did not start, never move money.

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Questions about the Nara Prefecture breach

Was Nara Prefecture hacked?

Security NEXT reported a data breach at Nara Prefecture (Japan) on 5 November 2026. It affected 363 people. How it happened, by the sources: lost or stolen device. It has been reported but not confirmed by Nara Prefecture or an authority.

What data was exposed in the Nara Prefecture breach?

Dates of birth, Names, Addresses and Management information, by the notices and reports on this page.

How do I know if I was affected?

Organisations normally tell the people whose data was involved, by letter or email, and that notice says what of yours was in it. We cannot look up individual people. If you got a notice, check that it is real, then follow the steps on this page.

Is there a Nara Prefecture data breach settlement?

No settlement open for claims is on record for Nara Prefecture as of 15 November 2026. Every open settlement is listed with its deadline.

Is a letter, email or text about the Nara Prefecture breach real or a scam?

A real notice names the breach, says what data was involved and never asks for a password, a code or a payment. Criminals often send fake notices after a breach is in the news. Do not use links or phone numbers in the message: go to Nara Prefecture’s own site, or check the letter here.

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From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Official registers · Corrections and changes · Accuracy audit · For journalists · Found a mistake? Tell us and we correct it.