Megasilver Information System Co., Ltd.
bd_16e1192cb820e8ea · schema v1 · pii pii-v1
Full breach record for Megasilver Information System Co., Ltd. →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
Megasilver Information System Co., Ltd. (Chinese: 兆銀資訊系統股份有限公司) is a Taiwanese company engaged in information technology services and software system development, especially in digital service solutions and intelligent operating systems.
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Incident timeline — mostly unverified
? — ?
Breach window unknown
Feb 4, 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
—
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.