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Cyber Threat
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Ransomware victim Healthcare

www.eastersealsia.org

Listed by Lynx on · organisation based in United States

www.eastersealsia.org

Disclosed
Jun 18, 2026
Leak-site listing date
Threat group
Lynx
417 victims listed
Country
United States
#1 most targeted
Sector
Healthcare

ThreatAI analysis

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

About the Lynx group

Lynx is a ransomware-as-a-service operation that emerged in mid-2024 as a rebrand of INC Ransomware (whose source code was sold for $300,000 on the RAMP forum), claiming ~300 victims across manufacturing, business services, technology, and transportation with an 80/20 profit split for affiliates. Lynx has listed 417 victims since May 2023.

How Lynx is documented to operate

Valid Accounts T1078 Stealth Persistence

Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion. Compromised credentials may be used to bypass access controls placed on various resources on systems within the network and may even be used for persistent access to remote systems and externally available services, such as VPNs, Outlook Web Access, network devices, and remote desktop. Compromised credentials may also grant an adversary increased privilege to specific systems or access to restricted areas of the network.

Mitigations: Application Developer Guidance, User Training, Password Policies, User Account Management, Privileged Account Management, Multi-factor Authentication

MITRE ATT&CK reference
Masquerading T1036 Stealth

Adversaries may attempt to manipulate features of their artifacts to make them appear legitimate or benign to users and/or security tools. Masquerading occurs when the name or location of an object, legitimate or malicious, is manipulated or abused for the sake of evading defenses and observation. This may include manipulating file metadata, tricking users into misidentifying the file type, and giving legitimate task or service names. Renaming abusable system utilities to evade security monitoring is also a form of Masquerading.

Mitigations: User Training, Execution Prevention, Code Signing, Behavior Prevention on Endpoint, User Account Management, Restrict File and Directory Permissions

MITRE ATT&CK reference
Disable or Modify Tools T1685 Defense Impairment

Adversaries may disable, degrade, or tamper with security tools or applications (e.g., endpoint detection and response (EDR) tools, intrusion detection systems (IDS), antivirus, logging agents, sensors, etc.) to impair or reduce visibility of defensive capabilities. This may include stopping specific services, killing processes, modifying or deleting tool configuration files and Registry keys, or preventing tools from updating. This may also include impairing defenses more broadly by disrupting preventative, detection, and response mechanisms across host, network, and cloud environments.

Mitigations: Execution Prevention, User Account Management, Restrict File and Directory Permissions, Restrict Registry Permissions, Software Configuration, Audit

MITRE ATT&CK reference

MITRE ATT&CK techniques attributed to Lynx across its recorded activity, not a finding about how www.eastersealsia.org was reached.

Incident analysis

www.eastersealsia.org was listed by Lynx ransomware, a group with 417 victims recorded in this database. The listing appeared on the group's leak site on June 18, 2026.

www.eastersealsia.org is based in United States and operates in the Healthcare sector. United States ranks #1 worldwide for ransomware disclosures, with 10,289 victims in this database.

Sector context. Healthcare organisations are high-value ransomware targets because patient data is extremely sensitive, regulatory penalties for breaches are severe, and operational downtime can threaten patient safety — all factors that increase ransom payment pressure.

Lynx 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 www.eastersealsia.org attacked by ransomware?

Yes. www.eastersealsia.org was listed as a victim of the Lynx ransomware group on June 18, 2026. The organisation is based in United States and operates in the Healthcare sector. The disclosure appeared on the group's dark web leak site.

Which ransomware group attacked www.eastersealsia.org?

www.eastersealsia.org was attacked by Lynx ransomware. Lynx is one of the most active ransomware groups, having claimed 417 victims globally. The group typically employs a double-extortion model: encrypting the victim's files and threatening to publish stolen data.

When did the www.eastersealsia.org ransomware attack occur?

The ransomware attack on www.eastersealsia.org was disclosed on June 18, 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 www.eastersealsia.org ransomware attack?

The specific data stolen from www.eastersealsia.org 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 Healthcare organisation, www.eastersealsia.org likely held patient records, medical data, and personally identifiable information (PII).

How can organisations protect against Lynx attacks?

To defend against Lynx 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.