The Kentucky rule in full No fixed deadline
Ky. Rev. Stat. § 365.732
- Notify residents
- In the most expedient time possible and without unreasonable delay after discovering or being notified of the breach. The business may allow for law enforcement needs and steps to find the scope and restore the system.
- Notify the state
- No notice to the Attorney General or any other state agency is required.
- Credit bureaus
- More than 1,000 residents notified.
- No-harm exception
- A breach counts only if the acquisition actually causes, or leads the business to reasonably believe it has caused or will cause, identity theft or fraud against a Kentucky resident. No separate documentation rule applies.
- Encryption
- Only unencrypted and unredacted data is covered. The statute does not address a stolen encryption key.
- Enforcement
- The statute sets no penalty and names no enforcing agency.
- Also know
- Businesses subject to the Gramm-Leach-Bliley Act or HIPAA are exempt. A vendor that only maintains the data must tell the data owner as soon as reasonably practicable. A business that follows its own notice policy with consistent timing is treated as compliant.
Law: Ky. Rev. Stat. § 365.732. Read from the statute and checked by a second reviewer on October 13, 2026. Compare all states.
Neighboring states: Indiana, Ohio, West Virginia, Virginia, Tennessee, Missouri, Illinois. A breach that reaches their residents brings in their rules too.
Dealing with a breach right now? Two short steps. A security provider follows up by email within one business day.
Get a quote for my businessThe Kentucky data breach notification law: no day count, no state filing
KRS 365.732 has stood unchanged since July 15, 2014 1. Its timing rule starts when a business finds a breach or is told about one, and from there notice should go out in the most expedient time possible and without unreasonable delay, with allowance for a police hold and for the work of sizing up the damage and repairing systems.
What it leaves out is striking: no state filing, no penalty amount, no named enforcer 1. The bureaus, at more than 1,000 people notified at one time, are the only outsiders who hear about it.
Without a number of days, the business effectively writes its own deadline and has to be able to defend it. Keep a dated log of three moments: when you first learned of the incident, when the forensic team confirmed what was taken, and when the letters were mailed. That log is the evidence that the timing was reasonable.
When a Kentucky incident counts as a breach
An incident is a breach in Kentucky only if the acquisition of unencrypted, unredacted data actually causes identity theft or fraud against a Kentucky resident, or leads the business to reasonably believe it has caused or will cause it 1. The harm test sits inside the definition itself. Kentucky does not demand paperwork for a decision to stay quiet, though a short memo of what the investigation showed is cheap insurance.
Records that were encrypted or redacted are out of scope 1. A stolen key is not mentioned anywhere in the statute, which makes that scenario one to raise with counsel rather than assume away.
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Get a quote for my businessWho is exempt, and the own-policy option
Two groups sit outside KRS 365.732 altogether: entities under the Gramm-Leach-Bliley Act and those under HIPAA 1. Their federal rules govern instead; a medical office can start with the federal patient notice rule explained.
A business with a written notice policy of its own, timed in line with the statute, is deemed to comply 1. Service providers that only hold someone else's records, an accounting platform for example, must warn the owner as soon as reasonably practicable.
With no penalty or enforcer written in, nobody can say yet whether a resident could use Kentucky's general damages statute to sue. Ask counsel; do not treat the gap as permission to stay quiet.
Kentucky's privacy law and the wider picture
Starting January 1, 2026, Kentucky's Consumer Data Protection Act reaches companies processing data on at least 100,000 Kentucky consumers a year, or 25,000 when over 50% of gross revenue comes from selling personal data 2. Few small firms cross those lines, and the thresholds are the privacy act's, not the breach law's. On the crime side, IC3 took in 9,414 complaints from Kentuckians in 2025 3.
First moves after a breach in Kentucky
Still under attack? Insured firms open a claim with the carrier first, then go to ic3.gov to tell the FBI; disk images and logs get saved before a single machine is rebuilt 456.
After that, an outside incident handling firm, or your own IT support, finds out what was taken while someone sorts the affected people by state. An Ohio or Tennessee customer brings a 45-day deadline that is tighter than Kentucky's; other states are in every state's breach rule in one table. The conditions cyber carriers attach to coverage often decide which lawyer and forensic firm you may use. If you have no IT provider to call, our Louisville and Lexington guides cover what local support costs.
Checked against KRS 365.732 on October 13, 2026, this page summarizes the law for owners and managers and does not amount to legal advice. Kentucky counsel can say how it fits your facts.
Common questions
When does the Kentucky data breach notification law require letters?
In the most expedient time possible and without unreasonable delay, with no day count 1. Police needs and the time to scope and fix the systems can push that back.
Does a Kentucky business have to tell the Attorney General about a breach?
No. Kentucky has no agency filing at all 1.
At what point does a Kentucky breach require credit bureau notice?
Once a single mailing goes to more than 1,000 people 1.
Are HIPAA and bank-regulated businesses covered by Kentucky's breach law?
No. GLBA and HIPAA entities are carved out of KRS 365.732 and follow federal breach rules 1.
Is there a penalty for violating Kentucky's breach law?
None is written into it, and no enforcer is named 1. A private suit under Kentucky's general damages statute is possible but untested, which is reason enough to send the letters.
Sources
- Kentucky General Assembly, KRS 365.732, 2026.
- Justia, 2025 Kentucky Revised Statutes § 367.3613, 2025.
- FBI Internet Crime Complaint Center (IC3), 2025 Internet Crime Report (States by Complaint Count, p.28; States by Complaint Loss, p.29), 2026-04.
- FBI, Ransomware, 2026-04-08.
- Federal Trade Commission, Data Breach Response: A Guide for Business, 2025-06-20.
- Federal Trade Commission, Cyber Insurance, 2021-11-09.
Updated October 13, 2026.