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JAENES
SPossible leakFebruary 17, 2026 announced

アットホーム（引越し見積もり）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
January 22, 2026
Announced on
February 17, 2026
Severity
SCompromise of deep personal data or usable credentials.
Scale
408 records
Main impact
Unauthorized login to the estimate management system was detected, and because contact information for 408 users may have been exposed, the estimate service was temporarily suspended.
Information involved
Email addressPhone numberHome addressFull name
Cause / key point
The cause is under investigation.About Abuse of credentials
Industry
Real estate
Listing / capital
Unlisted
Sources
Last updated
October 20, 2026
Email addressPhone numberHome 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: Abuse of credentials(Logging in legitimately with leaked or guessed passwords)

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