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JAENES
APossible leakAugust 27, 2026 announced

チューリッヒ保険（Z-Dash）Data breach / unauthorized access incident

笹尾 祐太朗の写真Reviewed by Yutaro SasaoWritten by Leak Watch editorial team published ・ updated
Occurred on
April 1, 2026
Announced on
August 27, 2026
Severity
AFinancial and HR records — information that easily translates into monetary damage.
Scale
1,668 people
Main impact
Names, email addresses, and case management numbers for up to 1,668 individuals may be at risk of exposure. The combination of items is under investigation, and no confirmed data leak has been found at this time.
Information involved
Email addressFull name
Cause / key point
The cause is under investigation.
Industry
Finance & insurance
Listing / capital
Unlisted

Zurich Insurance Group's Japan subsidiary

Sources
Last updated
October 20, 2026
Email addressFull nameHow severity is assessed →

Is this incident worth paying attention to?

Written & reviewed

笹尾 祐太朗の写真

Reviewed byYutaro SasaoFounder & CEO, MediaLeap Inc.

CEO of MediaLeap Inc. Working on both sides of web advertising and web media since 2013; founded the company in May 2025.

Review scope: cross-checking against primary sources (official and government announcements), verifying claims stay within the facts, and checking source attribution。Last reviewed:

Written by:Leak Watch editorial team (AI-assisted drafts verified against sources by the editorial team) · Reviewer profile · Request a correction

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Attack method classification: Under investigation / not stated(Cause not disclosed)

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