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Ransomware Victim Technology

AsahiKASEI MICRODEVICES

Ransomware attack by Crypto24 ยท Disclosed November 12, 2025 ยท ๐Ÿ‡บ๐Ÿ‡ธ United States

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Date Disclosed
Nov 12, 2025
2025
Threat Group
Crypto24
46 total victims
Country
๐Ÿ‡บ๐Ÿ‡ธ United States
Industry
Technology

Incident Analysis

AsahiKASEI MICRODEVICES was targeted by Crypto24 ransomware, one of the most active ransomware groups in our database with 46 confirmed victims globally. The attack was disclosed on November 12, 2025, when AsahiKASEI MICRODEVICES appeared on the group's dark web leak site.

AsahiKASEI MICRODEVICES is based in United States , operating in the Technology sector. United States ranks #1 globally for ransomware attacks, with 9,007 victims in our database.

Sector context: Technology companies hold intellectual property, customer data, and source code โ€” all highly valuable assets. A successful ransomware attack can also put downstream customers at risk through supply chain exposure.

Crypto24 typically employs a double extortion model: first exfiltrating sensitive data from the victim's systems, then deploying ransomware to encrypt files. Victims face two simultaneous threats โ€” paying to restore access and paying to prevent publication of stolen data. The group's leak site publishes victim names and exfiltrated data as leverage.

Data source: This incident record is sourced from public ransomware group leak site disclosures aggregated via the ransomware.live API. Disclosure date reflects when the victim was published on the leak site, which may differ from the initial date of compromise. This platform does not publish or link to stolen data. Last data update: Aug 5, 2026 16:00 UTC.

Frequently Asked Questions

Was AsahiKASEI MICRODEVICES attacked by ransomware?

Yes. AsahiKASEI MICRODEVICES was listed as a victim of the Crypto24 ransomware group on November 12, 2025. The organisation is based in United States and operates in the Technology sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked AsahiKASEI MICRODEVICES?

AsahiKASEI MICRODEVICES was attacked by Crypto24 ransomware. Crypto24 is one of the most active ransomware groups, having claimed 46 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the AsahiKASEI MICRODEVICES ransomware attack occur?

The ransomware attack on AsahiKASEI MICRODEVICES was disclosed on November 12, 2025. This date reflects when the victim was published on the threat group's leak site, which may differ from the actual date of initial compromise.

What data was stolen in the AsahiKASEI MICRODEVICES ransomware attack?

The specific data stolen from AsahiKASEI MICRODEVICES has not been independently verified by this platform. Ransomware groups typically exfiltrate data before encrypting systems and use the threat of publication to pressure victims. As a Technology organisation, AsahiKASEI MICRODEVICES likely held source code, intellectual property, and customer data.

How can organisations protect against Crypto24 attacks?

To defend against Crypto24 and similar threat actors, organisations should: maintain regular offline backups tested for restoration; implement network segmentation to limit lateral movement; deploy multi-factor authentication on all remote access; use endpoint detection and response (EDR) tools; conduct regular phishing and security awareness training; and monitor threat intelligence feeds for indicators of compromise (IOCs) associated with active groups.