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Cyber Threat
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Ransomware victim Government & Defense

ASELSAN

Listed by Crpxo on · organisation based in Turkey

Disclosed
Jul 31, 2026
Leak-site listing date
Threat group
Crpxo
37 victims listed
Country
Turkey
#18 most targeted
Sector
Government & Defense

ThreatAI analysis

Compiled from this incident record and the threat intelligence profile for Crpxo. Figures and technique mappings are quoted from the source data, not inferred.

About the Crpxo group

CRPxO is actively recruiting affiliates, offering: 🔹 70% revenue share 🔹 XMR/BTC payouts 🔹 Claimed payouts within 24 hours 🔹 $333 one-time affiliate access Crpxo has listed 37 victims since July 2026.

Incident analysis

ASELSAN was listed by Crpxo ransomware, a group with 37 victims recorded in this database. The listing appeared on the group's leak site on July 31, 2026.

ASELSAN is based in Turkey and operates in the Government & Defense sector. Turkey ranks #18 worldwide for ransomware disclosures, with 180 victims in this database.

Sector context. Organisations in this sector hold valuable data and operational systems that ransomware groups seek to exploit for financial gain through encryption and data exfiltration.

Crpxo typically follows a double extortion model: data is exfiltrated from the victim's systems before files are encrypted, so the victim faces two demands at once — pay to restore access, and pay to keep stolen data unpublished. The leak site, where this listing appeared, is the lever for the second demand.

Source. Public leak-site disclosures aggregated via the ransomware.live API. The disclosure date is when the listing was published, which can differ from the date of compromise. This site does not publish or link to stolen data. Last updated .

Frequently asked questions

Was ASELSAN attacked by ransomware?

Yes. ASELSAN was listed as a victim of the Crpxo ransomware group on July 31, 2026. The organisation is based in Turkey and operates in the Government & Defense sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked ASELSAN?

ASELSAN was attacked by Crpxo ransomware. Crpxo is one of the most active ransomware groups, having claimed 37 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the ASELSAN ransomware attack occur?

The ransomware attack on ASELSAN was disclosed on July 31, 2026. 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 ASELSAN ransomware attack?

The specific data stolen from ASELSAN 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 Government & Defense organisation, ASELSAN likely held sensitive business data, client information, and operational records.

How can organisations protect against Crpxo attacks?

To defend against Crpxo 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.