HIGH RISK BREACH

Cookeville Regional Medical Center Data Breach


Status: Confirmed

21K+Records
Aug, 2025Breach
8/28/25Data Posted
9/10Severity
HighThreat Level

Breach Intelligence Summary


Entity: Cookeville Regional Medical Center · Actor: Rhysida · Source: DataBreach.com / ObscureIQ intelligence

Attack: Ransomware via Phishing

Timeline: Breach (Aug, 2025) · Reported (Aug, 2025) · Leak (8/28/25)

Exposure: 21K+ records · Social Security Number, Email, Phone Number, Home Address

Status: Confirmed · Risk: High (Identity theft + Phishing / SIM swap)

Summary

TL;DR: Our current parse of the Cookeville Regional Medical Center (CRMC) leak shows 13 300 unique Social Security numbers alongside 20 500 street addresses , 8 500 phone numbers , and 7 700 email addresses . On Rhysida’s portal the CRMC card lists a 538GB / 372 574-file data catalog and a 70% progress bar with the caption “Not sold data was uploaded data hunters enjoy.” Totals may increase as additional archives land. What happened-and when CRMC reported a network security incident in July 2025 that disrupted operations. Soon after the Rhysida ransomware operation claimed responsibility posted proof-of-theft samples and advertised a 10-Bitcoin demand with an auction countdown-classic double-extortion. Release status (why counts may rise) The leak portal currently shows 538GB across 372 574 files and marks the dump 70% complete with a “not sold” caption-signaling a public release rather than a private sale. As remaining tranches arrive de-duplication and entity linking typically nudge unique counts upward. Our parse so far,

13 300 unique SSNs 20 500 unique street addresses , 8 500 unique phone numbers , 7 700 unique email addresses , Figures are preliminary and will be updated if later archives materially change the picture. What the data mix signals The combination of SSN + full address + phone, is the high-risk pattern for:

Tax-refund fraud and synthetic identity creation Credit-file takeover and long-tail medical identity theft , Targeted phishing and social-engineering attacks against both patients and staff Healthcare leaks frequently include HR/finance records (e.g. W-2s driver’s licenses) alongside patient data expanding exposure beyond clinical files. What’s confirmed vs. unknown Confirmed

Ransomware attack with operational disruption Rhysida’s public claim proof samples and 10-BTC auction language Ongoing public posting of the dataset (70% indicator). Unknown (as of publication) Final person-count totals and the hospital’s definitive list of data types Initial access vector (phishing remote access third-party etc.) Whether the entire 538GB will ultimately post , Practical steps for affected individuals

Place a credit freeze with all three major bureaus; consider a fraud alert Create/lock an IRS online account ; watch transcripts for anomalies Review insurer EOBs for unfamiliar services and dispute immediately Rotate passwords for any patient/staff portals and enable MFA Save any official notice for documentation and rights timelines

About Cookeville Regional Medical Center

Cookeville Regional Medical Center is the organization affected by this breach. User data may have been generated through account creation, service usage, or business operations.

If you have interacted with Cookeville Regional Medical Center in any capacity, your data may be included in this breach.

Threat Actor: Rhysida

This breach has been attributed to Rhysida. The group is known for data theft campaigns targeting organizations through various intrusion methods.

Reported or suspected access method:
  • Phishing

Breach Exploitation Status

Threat Activity:
High
Signal
Status
Dark web marketplace listings
Detected
Credential stuffing list overlap
Possible
Phishing campaign relevance
Detected
Ransomware affiliate crossover
Possible
Law enforcement investigation visibility
Unknown

Data Longevity:
Indefinite (critical identifiers)

SSNs and government IDs never expire. This data can be used for identity theft years or decades after exposure.

Data Points Exposed

Data observed in the leaked dataset:
Social Security Number
Email
Phone Number
Home Address
Not confirmed in dataset:
Passwords (plaintext)
Payment card data
Passport numbers

Dark Web Verification

Status: Confirmed

  • Dataset containing approximately 21K+ records has been identified in breach intelligence sources.
  • The data is indexed and searchable across breach notification platforms.

Impact

This breach carries high risk due to the nature of exposed data fields and the scale of affected records.

Primary downstream threats include:
  • Targeted phishing referencing Cookeville Regional Medical Center accounts or services
  • Identity theft using exposed Social Security Numbers
  • SIM-swap attempts where phone numbers are present
  • Physical mail scams and address-based identity verification fraud
  • Data broker enrichment and resale

Recommendations for Impacted Individuals

If you believe your information may be included:

Check Your Exposure
If you are an ObscureIQ client, this breach has been indexed into your exposure profile.
Non-clients may request a breach impact review.
Expect Targeted Phishing
Watch for messages referencing:
Cookeville Regional Medical Center account updates
Password reset requests
Verify directly through official channels.
Secure Your Email and MFA
Enable MFA immediately on email first, then financial platforms.
Email compromise is often the first pivot point.
Rotate Reused Passwords
Change any credentials shared with your Cookeville Regional Medical Center account across other services.
Monitor Financial Accounts
Review bank statements, credit reports, and loan applications. Consider a credit freeze if SSN or financial data was exposed.
Suppress Personal Data
Remove exposed addresses, phone numbers, and enrichment data from broker networks and search engines.

Frequently Asked Questions

What happened in the Cookeville Regional Medical Center data breach?

In Aug, 2025, Cookeville Regional Medical Center experienced a data breach that resulted in the exposure of approximately 21K+ records containing personal information.

What data was exposed in the Cookeville Regional Medical Center breach?

The exposed data includes Social Security Number, Email, Phone Number, Home Address.

How many records were affected in the Cookeville Regional Medical Center breach?

Approximately 21K+ records were affected based on current breach intelligence.

Is the Cookeville Regional Medical Center breach confirmed?

Yes. This breach is treated as confirmed based on data observed in breach intelligence platforms.

Is the Cookeville Regional Medical Center breach data being used by criminals?

Data circulation has been detected across breach-sharing channels. Downstream exploitation risk exists based on the nature of the exposed fields.

What should I do if I was affected by the Cookeville Regional Medical Center breach?

Rotate passwords associated with Cookeville Regional Medical Center, enable multi-factor authentication on email and financial accounts, and monitor for suspicious activity.

Protect Yourself

Check If You’re Affected

Enter your email to check if your data appears in this breach.

Get Free Breach Alerts

Be the first to know when new breaches are disclosed. Free forever.

High-Risk? Get an Exposure Audit

Executives, public figures, and high-net-worth individuals face elevated risk. Our team provides full-spectrum exposure audits and threat monitoring.

Request Consultation

Corporate Accountability

Organizations that collect personal data have a duty to implement reasonable safeguards and to notify affected individuals when breaches occur.

Scope assessments may evolve as investigations continue. Users should not rely solely on early estimates when making risk decisions.

ObscureIQ Advisory

We combine proprietary dark web access with commercial and restricted breach intelligence to verify exposure and assess real-world risk.

If you are:
  • A public-facing individual
  • A high-profile executive
  • A customer of Cookeville Regional Medical Center
  • Or simply concerned about credential reuse

We can confirm whether your information is circulating and evaluate downstream threat vectors.

Services
AuditsWipesThreat MonitoringTraining

Classification Tags

Ransomware
SSN
Email
Phone
Address