THIS INVESTIGATION IS NO LONGER ACCEPTING NEW CLIENTS.
If You Got Notice of the
Katz, Kantor, Stonestreet & Buckner data breach
STATUS: This investigation is no longer accepting new clients.
We are investigating data breach class action lawsuit claims relating to the Katz, Kantor, Stonestreet & Buckner data breach—an event which exposed the private data of countless individuals. If you interacted with Katz, Kantor, Stonestreet & Buckner, your information was probably taken by cybercriminals. That’s serious. They can take out credit cards in your name, get your tax return, take your identity and ruin your credit. If you were notified by Katz, Kantor, Stonestreet & Buckner of this data breach, contact us fast. We can help.
About Katz, Kantor, Stonestreet & Buckner
Cole & Van Note is investigating Katz, Kantor, Stonestreet & Buckner, PLLC (“KKSB”), a legal services firm headquartered in Princeton, West Virginia. [1] The firm specializes in personal injury, family law, criminal defense, and a range of civil litigation services for clients throughout the region. [2]
As a legal services provider, KKSB maintains highly sensitive client records, including personal, financial, and case-related information. Organizations that collect and store this type of data are responsible for implementing safeguards designed to prevent unauthorized access and protect individuals’ private information.
On March 4, 2026, KKSB began notifying affected individuals that their data had been accessed on February 6, 2026. According to publicly reported disclosures, the incident involved unauthorized access to systems containing confidential client information and resulted in the exposure of sensitive personal data. The breach affected many individuals and included highly sensitive identifiers such as Social Security numbers and driver’s license numbers. [3]
Reports also indicate that the cyberattack has been publicly claimed by the hacking group Kairos. Incidents involving threat actors of this nature are particularly concerning, as they may involve both unauthorized access and potential data exfiltration, increasing the risk that sensitive information could be misused or further distributed.
The types of information potentially exposed in this incident may include:
- Full names
- Social Security numbers
- Driver’s license numbers
- Contact information (such as addresses, phone numbers, and emails)
- Case-related or legal records
Considering the number of people impacted by this event, Cole & Van Note’s data breach attorneys will be pursuing legal action on behalf of those affected. If you have received notice of this data breach, you should contact us for immediate response.
[1] Katz Kantor Stonestreet & Buckner – Official Website
[2] KKSB Data Security Incident Notice
[3] Ransomware.live – KKSB Incident Listing
Once you contact us...
- Review Your Breach Notice: Send us the Notice and then keep a copy for your records.
- Enroll in Credit Monitoring: Take advantage of any free services offered.
- Update Passwords: Change passwords and security questions for online accounts.
- Monitor Accounts: Regularly check statements and credit reports for signs of fraud.
- Request a Fraud Alert: Contact credit bureaus to add a temporary alert to your credit file.
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Join the Case
About Katz, Kantor, Stonestreet & Buckner
Cole & Van Note is investigating Katz, Kantor, Stonestreet & Buckner, PLLC (“KKSB”), a legal services firm headquartered in Princeton, West Virginia. [1] The firm specializes in personal injury, family law, criminal defense, and a range of civil litigation services for clients throughout the region. [2]
As a legal services provider, KKSB maintains highly sensitive client records, including personal, financial, and case-related information. Organizations that collect and store this type of data are responsible for implementing safeguards designed to prevent unauthorized access and protect individuals’ private information.
On March 4, 2026, KKSB began notifying affected individuals that their data had been accessed on February 6, 2026. According to publicly reported disclosures, the incident involved unauthorized access to systems containing confidential client information and resulted in the exposure of sensitive personal data. The breach affected many individuals and included highly sensitive identifiers such as Social Security numbers and driver’s license numbers. [3]
Reports also indicate that the cyberattack has been publicly claimed by the hacking group Kairos. Incidents involving threat actors of this nature are particularly concerning, as they may involve both unauthorized access and potential data exfiltration, increasing the risk that sensitive information could be misused or further distributed.
The types of information potentially exposed in this incident may include:
- Full names
- Social Security numbers
- Driver’s license numbers
- Contact information (such as addresses, phone numbers, and emails)
- Case-related or legal records
Considering the number of people impacted by this event, Cole & Van Note’s data breach attorneys will be pursuing legal action on behalf of those affected. If you have received notice of this data breach, you should contact us for immediate response.
[1] Katz Kantor Stonestreet & Buckner – Official Website
[2] KKSB Data Security Incident Notice
[3] Ransomware.live – KKSB Incident Listing
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How Data Breaches Occur
Data breaches happen in various ways. Common methods include:
- Phishing Attacks: Deceptive emails which trick authorized users into providing sensitive information like passwords to criminals.
- Malware: Malicious software, such as viruses or ransomware, is used to infiltrate systems and steal or encrypt data.
- Weak Passwords: Using easily guessable or outdated passwords make it easy for hackers to gain access.
- Unpatched Vulnerabilities: Failing to update software can leave known security gaps that attackers can exploit.
- Insider Threats: Employees or contractors with access to sensitive data may compromise security.
- Social Engineering: Manipulating individuals into divulging confidential information.
- Data/Device Theft: Physical theft of devices, such as laptops or external drives, which grant access.
Why Companies Need to be Held Liable
Corporations will tell you they are the “victims” in data breaches. Not so. Those who suffer after a data breach are those who have lost their privacy, their money, their peace of mind. When inadequate cybersecurity measures have led to a data breach, the law says you can sue for money damages under many theories, such as:
- Negligence;
- Breach of Implied or Express Contract;
- Breach of the Implied Covenant of Good Faith and Fair Dealing;
- State law claims such as the California Confidentiality of Medical Information Act (Cal. Civ. Code §§ 56, et seq.), California Consumer Legal Remedies Act (Cal. Civ. Code §§ 1750, et seq.), California Information Practices Act of 1977 (Cal. Civ. Code §§ 1798, et seq.), California Consumer Records Act (Cal. Civ. Code §§ 1798.80, et seq.) and California’s Unfair Competition Law (Cal. Bus. & Prof. Code §§ 17200, et seq.)
- Fair Credit Reporting Act.
How Data Breaches Occur
Data breaches happen in various ways. Here’s a general overview of common methods:
- Phishing Attacks: Deceptive emails which trick authorized users into providing sensitive information like passwords to criminals.
- Malware: Malicious software, such as viruses or ransomware, is used to infiltrate systems and steal or encrypt data.
- Weak Passwords: Using easily guessable or outdated passwords make it easy for hackers to gain access.
- Unpatched Vulnerabilities: Failing to update software can leave known security gaps that attackers can exploit.
- Insider Threats: Employees or contractors with access to sensitive data may compromise security.
- Social Engineering: Manipulating individuals into divulging confidential information.
- Data/Device Theft: Physical theft of devices, such as laptops or external drives, which grant access.
Why Companies Need To Be Held Liable
Corporations will tell you they are the “victims” in data breaches. Not so. Those who suffer after a data breach are those who have lost their privacy, their money, their peace of mind. When inadequate cybersecurity measures have led to a data breach, the law says you can sue for money damages under many theories, such as:
- Negligence;
- Breach of Implied or Express Contract;
- Breach of the Implied Covenant of Good Faith and Fair Dealing;
- State law claims such as the California Confidentiality of Medical Information Act (Cal. Civ. Code §§ 56, et seq.), California Consumer Legal Remedies Act (Cal. Civ. Code §§ 1750, et seq.), California Information Practices Act of 1977 (Cal. Civ. Code §§ 1798, et seq.), California Consumer Records Act (Cal. Civ. Code §§ 1798.80, et seq.) and California’s Unfair Competition Law (Cal. Bus. & Prof. Code §§ 17200, et seq.)
- Fair Credit Reporting Act.
Final Thoughts
People don’t take data breaches as seriously as they should. But you should. As such, for more details and updates about data breaches, visit our Data Breach Law page. But please don’t wait until your information is sold or used to get informed or to call us.
Thereafter, check out additional resources such as our Hacker Checker, the HIPAA Journal and the U.S. Department of Health and Human Services. If you’re still interested, let us direct you to the information you need.
Finally, don’t forget about us if you experience issues relating to data breaches, false advertising/consumer fraud and product liability/defective products claims. Whether you’re confident you have a claim, want fast compensation or just want some friendly advice, it is worth your time to talk with us. Our staff is approachable, knowledgeable and can work with you, free of charge, to meet your unique needs.
Final Thoughts
For more details and updates about data breaches, visit our Data Breach Law page. People don’t take data breaches as seriously as they should. Don’t wait until your information is sold or used to make a phone call.
Additional resources include our Hacker Checker, the HIPAA Journal and the U.S. Department of Health and Human Services. Let us direct you to the information you need.
Finally, don’t forget about us if you experience issues relating to data breaches, false advertising or consumer fraud and product liability/defective products claims. Whether you’re confident you have a claim, want fast compensation or just want some friendly advice, it is worth your time to talk with us. Our staff is approachable, knowledgeable and can work with you, free of charge, to meet your unique needs.