---
title: "Levin Sedran Berman network-data incident"
description: "Levin Sedran Berman notified individuals after investigating possible file access during a network incident detected in October 2025."
incident_type: "Cybersecurity incident"
status: "active"
last_modified: "2026-11-13"
canonical_url: "https://www.ally.security/incidents/levin-sedran-berman-network-data-incident-2025"
markdown_url: "https://www.ally.security/incidents/levin-sedran-berman-network-data-incident-2025.md"
stix_url: "https://www.ally.security/incidents/levin-sedran-berman-network-data-incident-2025/stix.json"
---

# Levin Sedran Berman network-data incident

Levin Sedran Berman notified individuals after investigating possible file access during a network incident detected in October 2025.

Last modified Nov 13, 2026 · 1 source

## Summary

- **Environment:** Law-firm network files
- **Operational impact:** Possible personal-data access; disruption not quantified
- **Financial impact:** No confirmed incident cost quantified

## What happened

[Levin, Sedran & Berman](https://lfsblaw.com/) identified suspicious network activity around October 7, 2025. Investigators found that files may have been accessed or acquired without authorization. [1](#source-1)

## Impact

The [November 10, 2026 notification sample](https://oag.ca.gov/system/files/LSB%20-%20Sample%20Notice.pdf) identifies names but leaves the other personal-information fields unspecified. It gives no affected-person total. [1](#source-1)

## Timeline

### October 7, 2025 — Suspicious activity identified

The notice dates discovery to approximately this day. [1](#source-1)

### October 5, 2026 — Contact review completed

The firm completed efforts to identify notification addresses. [1](#source-1)

### November 10, 2026 — Notification letter issued

Individuals were offered monitoring and restoration support. [1](#source-1)

### November 13, 2026 — Briefing updated

This briefing was last reviewed and updated on November 13, 2026.

## Threat Group & Attack Vector

The public notice does not establish the entry method or attack interval.

### Actors

- No threat actor group has been identified in the reviewed public evidence.

### TTPs

- No specific ATT\&CK technique is mapped from the available evidence.

## Response

The firm engaged cybersecurity experts and implemented additional safeguards. It reported no evidence of related identity theft or fraud. The public template does not specify the monitoring duration. [1](#source-1)

## Assets

[Download the case-scoped STIX 2.1 bundle](<https://www.ally.security/incidents/levin-sedran-berman-network-data-incident-2025/stix.json>)

## Sources

Primary source records used to research this incident.

<a id="source-1"></a>

### Levin Sedran Berman notification sample

official · Levin, Sedran & Berman, LLP · Nov 10, 2026

<https://oag.ca.gov/system/files/LSB%20-%20Sample%20Notice.pdf>

<details>
<summary>Evidence ledger</summary>

Review the supporting structured claims.

1. **Discovered At · 100% confidence · current**  
   Levin Sedran Berman network-data incident: 2025-10-07
2. **Occurred At · 100% confidence · current**  
   Notification letter issued: 2026-11-10
3. **Disclosed At · 100% confidence · current**  
   Levin Sedran Berman network-data incident: 2026-11-10
4. **Resulted In · 100% confidence · current**  
   Levin Sedran Berman network-data incident: Contact-identification efforts after file review concluded October 5, 2026. The November 10 sample identifies names but leaves other personal-data fields unspecified. It supplies no affected-person total.
5. **Occurred At · 100% confidence · current**  
   Suspicious activity identified: 2025-10-07
6. **Resulted In · 100% confidence · current**  
   Levin Sedran Berman network-data incident: Notification letter issued
7. **Resulted In · 100% confidence · current**  
   Levin Sedran Berman network-data incident: Contact review completed
8. **Resulted In · 100% confidence · current**  
   Levin Sedran Berman network-data incident: Suspicious activity identified
9. **Resulted In · 100% confidence · current**  
   Levin Sedran Berman network-data incident: The firm implemented additional security measures and offered complimentary monitoring and restoration support; the public template leaves the service duration unspecified. It reported no evidence of related identity theft or fraud.
10. **Affected Organization · 100% confidence · current**  
   Levin Sedran Berman network-data incident: Levin, Sedran & Berman, LLP
11. **Resulted In · 100% confidence · current**  
   Levin Sedran Berman network-data incident: The firm identified suspicious network activity on or about October 7, 2025 and engaged cybersecurity experts. Its investigation found that files may have been accessed or acquired without authorization.
12. **Occurred At · 100% confidence · current**  
   Contact review completed: 2026-10-05

</details>