Jakarta Nanyang School
bd_d932f87d6ba7aaa5 · schema v1 · pii pii-v1
Full breach record for Jakarta Nanyang School →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Tengu on its public extortion blog. It has not been validated by the victim or any regulator. Treat attribution and counts as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.
Source: Ransomware.live
Post text · scraped from the leak site
Jakarta Nanyang School (JNY) is a co-educational institution catering to students aged 3 to 18, offering a global and progressive educational approach. Established in 2012 in Bumi Serpong Damai, JNY focuses on the holistic development of students, enhancing their academic, moral, physical, social, and emotional growth. The school provides a nurturing environment and a variety of programs including Kindergarten, Primary, Secondary, and Junior College. JNY aims to serve families seeking a comprehensive and innovative educational experience for their children
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Incident timeline — mostly unverified
? — ?
Breach window unknown
Jan 26, 2026
Claim posted
—
No filing yet · watching
Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.
Claim → filing
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Compliance clock
Not assessable
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.
No regulatory filing corroborates this yet — it is the attacker's own assertion. Watch this entity to be notified the moment a filing corroborates or contradicts it.
Source ceiling
- actor name
- victim claim
- ransom/leak status
- discovery date
- materiality
- notification
- affected count
- confirmed data types
- compliance clock
The ✕ fields stay blank until a regulatory filing or victim disclosure lands.
tengu
According to ransomware.live, Tengu is a RaaS operation first observed in October 2025, following a double-extortion model and using Living Off The Land Binaries (LOLBins) to blend malicious activity with normal admin traffic, primarily targeting consumer goods, real estate, automotive, healthcare, and IT sectors.