Data Breach WatchDBW

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monitoring

Updated about 1 month ago

Colorado Health Network Data Breach

▼ Key takeaways

•Reports suggest a potential breach involving Colorado Health Network.
•Discovered on August 28, 2025.
•Possible data exposed: projects, client_details, employee_details.
•Confirmation level: Based on reports.

Detailed summary

The Cephalus ransomware group claimed to have breached Colorado Health Network, a US-based healthcare organization, and exfiltrated over 900 GB of data. The group updated its data leak portal on August 28, 2025, listing Colorado Health Network as a victim along with other entities. The exfiltrated data reportedly includes projects, client details, and employee details. The ransomware group is threatening to publish the stolen information.

Specific details regarding the number of affected individuals, when the company discovered the breach, or when consumers and regulators were notified have not been publicly confirmed. The full extent of the compromised data remains unclear. The breach was first reported on the Daily Dark Web, indicating a reports-only certainty level.

While details can emerge later and notices may be delayed, the initial report indicates a significant data exfiltration event.

Data possibly involved

projects
client_details
employee_details

Company Response Timeline

Breach Occurred

Aug 28, 2025

Company Discovered

Unknown

Regulator Notified

Unknown

Consumers Notified

Unknown

Breach Verification Status

Reports Only

Current

Initial dark web reports of potential breach

Company Confirmed

Company has acknowledged the breach

Regulator Confirmed

Confirmed by regulatory authorities

Note: Breach verification can take time. Information may evolve as more details become available from companies and regulators.

Case Status:

Monitoring

We're monitoring this situation for developments.

Were You Affected By This Breach?

If you are a customer or have received a data breach notification, you may submit your information as part of our ongoing investigation. Submitting your information is free and does not obligate you.

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Check Your Risk Level

Answer a few questions to understand how this breach might affect you

Do you use Colorado Health Network?

Yes

What should I do?

Change your passwords

Update passwords for the affected service and any accounts using the same password

Enable two-factor authentication

Add an extra layer of security to your accounts

Monitor your accounts

Watch for suspicious activity on your financial and online accounts

Watch for phishing attempts

Be cautious of emails or messages claiming to be from the affected company

Consider a credit freeze

Prevent unauthorized access to your credit report

Scan your email for other exposures

Check whether this address shows up in other known breaches. Free, no account.

Get your info off data-broker sites

Data Shield files removal requests with every broker that accepts an authorized agent, and gives you the exact link or letter for the brokers that only accept requests from you.

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