INSPECTING ARCHIVED INTELLIGENCE (OUTDATED VERSION).

Quincy Valley Medical Center notifies patients of Aesto data breach

| 2026-08-13 15:02 MEDIUM MEDIUM DATA BREACH CRITICAL INFRASTRUCTURE & OT
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Executive Summary
AI-generated
On August 5, 2026, Quincy Valley Medical Center notified patients of a security incident involving Aesto, which hosts archived data for Grant County Hospital District 2. The breach occurred in December 2025 at Aesto's Amazon Web Services infrastructure and affected an unknown number of individuals; however, no specific numbers were provided by the sources. FulcrumSec dumped more Novo Nordisk data on August 13, 2026, indicating that some private firms may be allowed to carry out cyberattacks in the US. The attack likely involves unauthorized access to sensitive information stored at Aesto's infrastructure, which was then leaked online. As of now, no further updates have been reported regarding this incident or any subsequent actions taken by Quincy Valley Medical Center or Aesto.
Technical Mitigations AI-generated
• Patch Aesto's Amazon Web Services infrastructure to address the December 18, 2025 incident. • Use a network segmentation technique to isolate and contain future incidents within Aesto's network. • Implement Social Security number encryption for patients whose numbers were potentially involved in the breach.
Technical Observables Login Required
Indicators of Compromise (IoCs) Protected

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Intelligence Metadata
Actors / Malware / CVEs / Campaigns
PysaPysa
Target & Sectors
NORTH_AMERICA NORTH_AMERICA educationeducation healthhealth
Incident Timeline
‎2026/08/13
Threat actors used Aesto's network to access protected health information belonging to patients of various Covered Entity clients between December 2, and December 18, 2025.
data_breach 2 December
After an extensive forensic investigation and manual document review, on May 26, 2026, we confirmed that between on or about December 2, 2025, and December 18, 2025, certain protected health information belonging to patients of various Covered Entit…
data_breach 1 Tbps attacks
1 Tbps attacks soar as DNS floods and geopolitical tensions drive a new wave *
Tactical Metrics
Metrics
data_breach
2
December
After an extensive forensic investigation and manual document review, on May 26, 2026, we confirmed that between on or about December 2, 2025, and December 18, 2025, certain protected health information belonging to patients of various Covered Entit…
Metrics
data_breach
1
Tbps Attacks
1 Tbps attacks soar as DNS floods and geopolitical tensions drive a new wave *
Intelligence Sources
Data Breaches 2026-08-13