Coverage description
An Insurance Services Office (ISO) standard form. It restores umbrella coverage for loss of electronic data that results from physical injury to tangible property, subject to a separate Loss Of Electronic Data Limit for each occurrence.
How the form has changed
2 changes across 1 revision, newest first. Each edition is compared with the one before it, using wording from filed copies.
12 23 edition
Dec 2023, compared with 12 19A new exclusion removes coverage for bodily injury or property damage arising out of a cyber incident, such as unauthorized access, malicious code or a denial of service attack.
12 19
Not in this edition
12 23
“Denial of service attack which disrupts,”
The exclusions for access to or disclosure of confidential or personal information are no longer part of this endorsement.
12 19
“Access Or Disclosure Of Confidential Or”
12 23
Removed
Editions
Edition dates as filed, newest first. Filing counts include every state submission that lists the edition.
| Edition | Filings | Companies | States | Filed |
|---|---|---|---|---|
| 06 26Jun 2026Latest | 27 | 2 | 26 | Sep 2025 to Feb 2026 |
| 12 23Dec 2023 | 70 | 26 | 43 | Feb 2023 to Sep 2026 |
| 12 19Dec 2019 | 28 | 17 | 9 | Mar 2022 to Jun 2026 |
Where filings record what this form replaced, they name earlier editions 12 19, 12 23. Only some filings record replacements.
What the filings show
- Edition in use: in the past 12 months, 8 companies filed the 12 23 edition and 2 companies filed 06 26.
- CU 04 02 (Loss Of Electronic Data Resulting From Physical Injury To Tangible Property Liability Coverage - Subject To Cyber Incident Exclusion) is filed alongside it most often, in 113 of the same filings (93%).
Filed under
Data from admitted P&C filings with state insurance departments, submitted Oct 2021 to Sep 2026, excluding withdrawn and rejected filings. One filing can cover several affiliated companies.
Carriers filing this form
The 10 carrier groups with the most filings that include CU 04 54, out of 20 in total.
| Carrier | Filings | States | Editions, most filed first | Last filed |
|---|---|---|---|---|
| Insurance Services Office, Inc.Advisory Organization | 67 | 39 | 12 2306 2612 19 | Jan 14, 2026 |
| Nationwide Corporation Group3 group companies filed it, led by Nationwide Mutual Insurance Company and Crestbrook Insurance Company | 15 | 11 | 12 2312 19 | Jun 30, 2026 |
| Church Mutual GroupChurch Mutual Insurance Company, S.I. | 7 | 3 | 12 1912 23 | Jun 26, 2026 |
| Tokio Marine Holdings Incorporated Group2 group companies filed it, led by Safety National Casualty Corporation and Philadelphia Indemnity Insurance Company | 6 | 2 | 12 2312 1906 26 | Jun 2, 2026 |
| Grange Mutual CAS GroupGrange Insurance Company | 5 | 5 | 12 19 | Mar 26, 2024 |
| Sompo GroupSompo America Insurance Company | 5 | 1 | 12 1912 23 | Jun 15, 2026 |
| Amtrust Financial Services Group7 group companies filed it, led by AmTrust Insurance Company of Kansas, Inc. and CorePointe Insurance Company | 2 | 1 | 12 23 | Aug 8, 2023 |
| Liberty Mutual GroupState Automobile Mutual Insurance Company | 2 | 2 | 12 19 | Mar 10, 2023 |
| United Fire & CAS Group2 group companies filed it, led by Addison Insurance Company and United Fire and Casualty Company | 2 | 2 | 12 23 | Jun 19, 2026 |
| AU Holding Company GroupContinental Indemnity Company | 1 | 1 | 12 19 | May 25, 2023 |
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States
Number of filings that include CU 04 54 in each state, Oct 2021 to Sep 2026. Darker states have more filings.
Often filed with
Standard-style form numbers that appear in the same filings most often.
- CU 04 02Loss Of Electronic Data Resulting From Physical Injury To Tangible Property Liability Coverage - Subject To Cyber Incident Exclusion113 filings
- CU 21 86Exclusion – Access Or Disclosure Of Confidential Or Personal Material Or Information112 filings
- CU 21 88Exclusion - Access Or Disclosure Of Confidential Or Personal Material Or Information (Coverage B Only)109 filings
- CU 04 98Cyber Incident Liability Coverage Subject To Each Cyber Incident Occurrence And Aggregate Limits96 filings
- CU 04 99Cyber Incident Liability Coverage And Loss Of Electronic Data Liability Coverage Subject To Loss Of Electronic Data, Each Cyber Incident Occurrence And Aggregate Limits96 filings
- CU 34 56Exclusion – Cyber Incident95 filings
- CU 00 05Exclusion - Violation Of Law Addressing Data Privacy93 filings
- CU 22 37Motor Carrier Endorsement81 filings
- CU 04 55Electronic Data Liability Coverage (Coverage A) With Access Or Disclosure Of Confidential Or Personal Information Exclusion (Coverage B)72 filings
- CU 34 55Exclusion - Electronic Data - Deletion Of Bodily Injury Exception71 filings
Recent filings
Latest filings that include this form number. Filed copies open in FilingFocus.
| Submitted | Company | State | Editions | Tracking number |
|---|---|---|---|---|
| Sep 10, 2026 | SECURA Insurance, A Mutual Company | IL | 12 23 | SEIC-135049056 |
| Jun 30, 2026 | Crestbrook Insurance Companyand 1 more | CO | 12 23 | NWPP-135003098 |
| Jun 26, 2026 | Church Mutual Insurance Company, S.I. | CO | 12 23 | CHMU-134995025 |
| Jun 19, 2026 | Addison Insurance Companyand 1 more | CO | 12 23 | UNFG-134979875 |
| Jun 15, 2026 | Sompo America Insurance Company | CO | 12 2312 19 | SMPJ-134971280 |
| Jun 2, 2026 | Philadelphia Indemnity Insurance Company | IL | 12 23 | PHLX-134967828 |
| Feb 17, 2026 | Safety National Casualty Corporation | CO | 06 26 | SFCC-134815068 |
| Jan 14, 2026 | Insurance Services Office, Inc. | VA | 06 26 | ISOF-134799407 |
| Sep 30, 2025 | Insurance Services Office, Inc. | GA | 06 26 | ISOF-134687840 |
| Sep 16, 2025 | Insurance Services Office, Inc. | VT | 06 26 | ISOF-134664793 |
| Sep 15, 2025 | Insurance Services Office, Inc. | LA | 06 26 | ISOF-134664766 |
| Sep 15, 2025 | Insurance Services Office, Inc. | ME | 06 26 | ISOF-134664767 |
Most filed ISO CU forms
- CU 34 54 Exclusion - Perfluoroalkyl and Polyfluoroalkyl Substances (PFAS)
- CU 21 86 Exclusion – Access Or Disclosure Of Confidential Or Personal Material Or Information
- CU 00 05 Exclusion - Violation of Law Addressing Data Privacy
- CU 34 56 Exclusion – Cyber Incident
- CU DS 01 Commercial Liability Umbrella Declarations
- CU 21 88 Exclusion - Access Or Disclosure Of Confidential Or Personal Material Or Information (Coverage B Only)
- CU 34 44 Broad Abuse or Molestation Exclusion
- CU 34 55 Exclusion - Electronic Data - Deletion Of Bodily Injury Exception
- CU 22 37 Motor Carrier Endorsement
- CU 21 87 Exclusion - Access Or Disclosure Of Confidential Or Personal Information and Data-Related Liability - Limited Bodily Injury Exception Not Included
- CU 04 02 Loss Of Electronic Data Resulting From Physical Injury To Tangible Property Liability Coverage - Subject To Cyber Incident Exclusion
- CU 00 01 Commercial Liability Umbrella Coverage Form
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