Nikkei Business Daily reported a data breach at Shareful (Japan) on 9 November 2026. It affected 7,500,000 users.
What we know as of
Status
Reported by Nikkei Business Daily; not yet confirmed by Shareful or an authority.
People affected
7,500,000 users.
When
First reported 9 November 2026.
How
Hacking.
Shareful’s record
No earlier breach on record under this name.
Not known yet: what data was exposed, when it began and who was behind it. This page is updated as notices and statements come in.
Every fact above has its source below. Journalists: free to quote with credit (“Privacy Unpacked data breach tracker”, with a link to this page and the date); the figures can move. Follow this breach (feed) · Every major breach · Ask us for a figure
People affected
7,500,000users
Reported
9 November 2026News report
What was exposed
Nobody has said yet what was exposed.
How it happened
How
Hacking On the 4th, the company's management system was subjected to unauthorized access, and personal data including facial photographs was temporarily able to be taken out.sourceOur translation from Japanese4日に同社の管理システムへ不正アクセスを受け、顔写真のデータも一時的に持ち出すことができる状態になっていた。
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
Questions about the Shareful breach
Was Shareful hacked?
Nikkei Business Daily reported a data breach at Shareful (Japan) on 9 November 2026. It affected 7,500,000 users. How it happened, by the sources: hacking. It has been reported but not confirmed by Shareful or an authority.
What data was exposed in the Shareful breach?
The notices and reports so far do not say what was exposed. This page is updated when they do.
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 Shareful data breach settlement?
No settlement open for claims is on record for Shareful as of 15 November 2026. Every open settlement is listed with its deadline.
Is a letter, email or text about the Shareful 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 Shareful’s own site, or check the letter here.
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