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Listed on a ransomware leak site

Kobayashi

kbjapan.co.jp

Kobayashi was listed on the World Leaks leak site on Oct 24, 2025. Information as of Oct 19, 2026.

Country: JapanIndustry: Unknown
Updated continuously · figures as of Oct 19, 2026
Claimed by
World Leaks
First listed
Oct 24, 2025
Claims recorded
1

Leak-Site Claim.

World LeaksConfirmed claim
Posted on the leak site
Oct 24, 2025
Collected by Brandefense
Nov 5, 2025
Data claimed
Not stated

Posted again 1 time by the same group

Leak-site post text, written by the group
Kobayashi Pharmaceutical Co. Ltd. is a Japanese company that specializes in the manufacturing and sale of over-the-counter drugs, oral hygiene products, and healthcare items. Their extensive product line-up includes cool fever patches, pain relief patches, skin creams, oral care products, and other health-related goods garnering a global presence. They focus on enhancing everyday health and comfort for their customers.

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Other confirmed victims claimed by the same group
VictimClaimed byCountryIndustryData claimedPosted
PinnPACK
pinnpack.com
World LeaksUSUnited StatesManufacturingNot stated
St. Francis Xavier Catholic School System
xaviercatholicschools.org
World LeaksUSUnited StatesEducation and ResearchNot stated
Treet Group of Companies
treetcorp.com
World LeaksPKPakistanConsultingNot stated
Service IT
service.com.br
World LeaksBRBrazilTechnologyNot stated
COMHAR
comhar.org
World LeaksUSUnited StatesIndividualsNot stated
Starpool
starpool.com
World LeaksITItalyHealthcareNot stated

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Figures as of Oct 19, 2026. Confirmed leak-site claims collected by Brandefense technologies and validated by Brandefense analysts.

Listed on a leak site means a ransomware group has claimed the company; it is not a confirmed breach. To request a correction or removal, contact Brandefense.