ThreatCluster

Argentina Healthcare and Telecom Data Claims on Dark Web

First seen 19 Sep 2026, 17:27 UTC • •33

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ThreatCluster •September 19, 2026 at 18:44 UTC

•Two unverified claims of data breaches in Argentina's healthcare and telecom sectors.
•Healthcare data could lead to medical identity fraud if authentic.
•Telecom data may enable SIM-swap fraud and phishing attacks.

On September 19, 2026, two separate claims emerged on the dark web regarding alleged data breaches in Argentina. The first claim involves a hospital/health database purportedly containing sensitive patient information, including accession numbers and exam-related fields, although its authenticity remains unverified. The second claim involves a telecom database from Personal, allegedly containing around 129,000 records, including server logs and user IDs. Both claims are attributed to unidentified threat actors and do not confirm any specific compromises of the respective systems. If authentic, the leaked data could facilitate medical identity fraud and SIM-swap fraud, among other risks. The current status of these claims is unverified, with no confirmed breaches reported. Security professionals are urged to remain vigilant regarding potential impacts on patient privacy and customer data security.

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Timeline

2026-09-19

Healthcare database claim reported

A threat actor claims to have access to an Argentine hospital database, including sensitive patient information.

2026-09-19

Telecom database claim reported

A separate claim on the dark web alleges a dump of Personal's telecom customer data, affecting around 129,000 records.

More articles in this cluster (2)

Threat Graph

5 entities, 4 inferred relationships (STIX 2.1).

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Technique (3)

Data Breach
Phishing
T1566 - Phishing

Organization (1)

Msalud

Weakness (1)

CWE-200 - Exposure of Sensitive Information

Relationships

Data Breach related to Phishing
Data Breach related to Msalud
Data Breach related to CWE-200 - Exposure of Sensitive Information
Data Breach related to T1566 - Phishing

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