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GLOBALMalwareTechnologyInformationRansomwareCrypto24Ransom DemandedActor NamedMedium

Hollysys Asia Pacific

bd_76d300e25379339f · schema v1 · pii pii-v1

Severity

Medium

Discovered

Filed

Dec 1, 2025

To disclose

Affected

Not disclosed

Confidence

50%
Full breach record for Hollysys Asia Pacific

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Crypto24 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.

Group activity: TechnologyDiscovered: 2025-12-01

Source: Ransomware.live

Post text · scraped from the leak site

Hollysys Asia Pacific is part of Hollysys Automation Technologies Ltd, a leading provider of industrial and rail transportation automation solutions. Its core businesses include industrial automation, rail transportation, and mechanical and electrical solutions. The company utilizes advanced technologies in industrial automation and control, digital rail signaling, and mechanical and electrical solutions to address modern industrial operations and infrastructure requirements.

Incident timeline — mostly unverified

? — ?

Breach window unknown

Dec 1, 2025

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

Tracked as a single-filing incident — the only disclosure on record for this event so far.Unverified claimView incident

Evidence ladder

Leak-site claimThis record

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filing

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

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.

About this groupFirst seen 2023-12-13

crypto24

According to ransomware.live, Crypto24 is a double-extortion ransomware-as-a-service group that surfaced on the RAMP forum in mid-2024, targeting large organizations in financial services, healthcare, manufacturing, and technology across Asia, Europe, and North America, with notable victims including CMC Group, Vietnam's second-largest ICT conglomerate.

47 victims claimed globally47 tracked hereFull profile →