IR 05000321/2025403

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Cyber Security Inspection Report 05000321/2025403 and 05000366/2025403
ML25162A032
Person / Time
Site: Hatch  
Issue date: 06/18/2025
From: Daniel Bacon
NRC/RGN-II/DORS
To: Coleman J
Southern Nuclear Operating Co
References
IR 2025403
Download: ML25162A032 (1)


Text

SUBJECT:

EDWIN I. HATCH NUCLEAR PLANT, UNITS 1 & 2 - CYBER SECURITY INSPECTION REPORT 05000321/2025403 AND 05000366/2025403

Dear Jamie M. Coleman:

On May 15, 2025, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Edwin I. Hatch Nuclear Plant and discussed the results of this inspection with Matt Blocker and other members of your staff. The results of this inspection are documented in the enclosed report.

No findings or violations of more than minor significance were identified during this inspection.

This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with Title 10 of the Code of Federal Regulations 2.390, Public Inspections, Exemptions, Requests for Withholding.

Sincerely, Daniel M. Bacon, Chief Engineering Branch 2 Division of Operating Reactor Safety Docket Nos. 05000321 and 05000366 License Nos. DPR-57 and NPF-5

Enclosure:

As stated

Inspection Report

Docket Numbers:

05000321 and 05000366

License Numbers:

DPR-57 and NPF-5

Report Numbers:

05000321/2025403 and 05000366/2025403

Enterprise Identifier:

I-2025-403-0016

Licensee:

Southern Nuclear Operating Co., Inc.

Facility:

Edwin I. Hatch Nuclear Plant, Units 1 & 2

Location:

Baxley, GA

Inspection Dates:

May 12, 2025 to May 15, 2025

Inspectors:

J. Bowden, Cyber Security Specialist

P. Braaten, Senior Reactor Inspector

J. Hartman, Cyber Security Specialist

W. Monk, Senior Reactor Inspector

Approved By:

Daniel M. Bacon, Chief

Engineering Branch 2

Division of Operating Reactor Safety

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting a cyber security inspection at Edwin I. Hatch Nuclear Plant, in accordance with the Reactor Oversight Process. The Reactor Oversight Process is the NRCs program for overseeing the safe operation of commercial nuclear power reactors. Refer to https://www.nrc.gov/reactors/operating/oversight.html for more information.

List of Findings and Violations

No findings or violations of more than minor significance were identified.

Additional Tracking Items

None.

INSPECTION SCOPES

Inspections were conducted using the appropriate portions of the inspection procedures (IPs) in effect at the beginning of the inspection unless otherwise noted. Currently approved IPs with their attached revision histories are located on the public website at http://www.nrc.gov/reading-rm/doc-collections/insp-manual/inspection-procedure/index.html. Samples were declared complete when the IP requirements most appropriate to the inspection activity were met consistent with Inspection Manual Chapter (IMC) 2201, Security Inspection Program for Commercial Nuclear Power Reactors. The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel to assess licensee performance and compliance with Commission rules and regulations, license conditions, site procedures, and standards.

SAFEGUARDS

71130.10 - Cybersecurity

The inspectors reviewed implementation of Hatch's Cyber Security Plan (CSP) and focused on evaluating changes to the program, critical systems, and CDAs.

Cybersecurity (1 Sample)

(1) The following IP sections were completed and constitute completion of 1 sample:

1. 03.01, Review Ongoing Monitoring and Assessment Activities

2. 03.02, Verify Defense-in-Depth Protective Strategies

3. 03.03, Review of Configuration Management Change Control

4. 03.05, Evaluation of Corrective Actions

INSPECTION RESULTS

No findings were identified.

EXIT MEETINGS AND DEBRIEFS

The inspectors verified no proprietary information was retained or documented in this report.

  • On May 15, 2025, the inspectors presented the cyber security inspection results to Matt Blocker and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

CR 1069030

06/10/2020

CR 1070738

07/21/2020

CR 10938201

01/09/2023

Corrective Action

Documents

CR 10949154

2/17/2023

CR 11177785

25 NRC Cyber Inspection - Documentation for auditable

events review

05/12/2025

CR 11177787

25 NRC Cyber Inspection - Baseline configuration list of

software

05/12/2025

CR 11177788

25 NRC Cyber Inspection - Discrepancies between

baseline configuration software and vulnerability

management software

05/12/2025

CR 11178178

25 NRC Cyber Inspection - Vulnerability Management

Procedure Enhancements

05/13/2021

CR 11178663

25 NRC Cyber Inspection - E5.5 Controls for Select CDAs

05/15/2025

CR 11178671

25 NRC Cyber Inspection - Evaluation of controls on

Indirect SIEM

05/15/2021

Corrective Action

Documents

Resulting from

Inspection

CR 11179641

25 NRC Cyber Inspection - Removal of Unnecessary

Services

05/19/2025

SNC1132207J003

CDA Functional Group Assessment CDA-HNP-2B31-001

2/18/2021

SNC1132207J004

CDA Functional Group Assessment CDA-HNP-1B31-001

2/18/2021

SNC1183620J003

Critical Digital Asset (CDA) Functional Group Assessment

Unit 2 SPDS and ERDS Systems

Rev. 01

SNC1348498J100

Critical Digital Asset (CDA) Functional Group Assessment -

Feedwater

Rev 02

Engineering

Changes

SNC1396441

Wireless Gauge Reader Evaluation

Rev. 2

CDA-HNP-2S32-

003

Critical Digital Asset (CDA) - Functional Group Assessment

U2 Generator, Main Transformer, UAT Protective Relays

Rev. 01

CSP-1

SOUTHERN NUCLEAR OPERATING COMPANY CYBER

SECURITY PLAN

Rev. 4

NL-24-0254

Report of Changes to Cyber Security Plan and Summary of

50.54(p) Analysis

01/09/2025

71130.10

Miscellaneous

S-77950

Global Instrument & Control DCIS Platform & Cyber Security

Rev. 02

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

Engineering Snare Enterprise Agent User Guide

S-77951

Global Operations Services DCIS Platform & Cyber Security

Engineering Microsoft Windows Server 2016 Hardening

Configuration Guide

Rev. 02

S-78291

Simatic Industrial PC Simatic IPC477E

Rev. 01

DI-OPS-96-1222

Control of Wireless Gauge Readers

Rev. 1.2

NMP-ES-046

Configuration Management

Rev. 3.1

NMP-ES-095

Interface Procedure for IP-ENG-001, "Standard Design

Process"

Rev. 16

NMP-GM-007

Acquisition and Development of Technology Solutions for

Southern Nuclear

Rev. 16

NMP-GM-010

Supplemental Personnel Control

Rev. 16.5

NMP-GM-014

Cyber Security for Digital Plant Systems

Rev. 17.13

NMP-GM-014-007

CFR 73.54 Critical Digital Asset (CDA) Identification

Instructions

Rev. 15.4

NMP-GM-014-018

CDA Vulnerability Management

Rev. 11

NMP-GM-014-019

CDA Configuration Management and Cyber Hardening

Controls

Rev. 7.4

NMP-TR-602

Training and Qualification of Supplemental Personnel

Rev. 17.3

Procedures

NMP-TR-602-F02

Supplemental Personnel Training Matrix

Rev. 14

Self-Assessments CISA-HNP-2025-

Cyber_Plan

Pre-NRC Inspection CISA - Cyber Security

2/11/2025

Work Orders

SNC1799728

Review Splunk logs for Digital Gateway and the connected

CDAs

04/23/2025