OTNet

OTNet

Data breach claim reported March 30, 2026
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Data Breach Report
Victimotnet.co.jp
Claimed ByNightSpire
Date DiscoveredMar 30, 2026
DescriptionOTNet Co., Ltd. is a telecommunications company based in Japan, specializing in fiber-optic network infrastructure, internet connectivity, cloud services, cybersecurity, network integration, and ICT solutions for businesses, government agencies, and public institutions.
Leak SizeUnknown

Breach claims on this page are published by threat actors and haven't been verified by Breachsense.

Credential Exposure for otnet.co.jp

We've indexed 10 @otnet.co.jp accounts from external breaches.

Last checked Nov 8, 2026

@otnet.co.jp addresses from external breaches
Third-party breaches9 accounts · across 13 breaches · 8 with a plaintext password · most recent Jan 1, 2020
Combo lists3 accounts · most recent Jun 22, 2026

None of this is necessarily connected to the ransomware attack above.

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