HackingTelecom & MediaTechnologyInformationSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)LowContained

Ericsson Inc.

bd_3ac020b40fae811c · schema v1 · pii pii-v1

Severity

Low

Discovered

Apr 28, 2025

Filed

Mar 9, 2026

To disclose

45 weeks

Affected

Not disclosed

Linked

8 filings

Confidence

64%

Full breach record for Ericsson Inc. →2 incidents on file

Ericsson Inc notified the California AG of a data security incident at a third-party service provider. Unauthorized access to certain data occurred between April 17 and April 22, 2025. The provider detected the suspicious event on April 28, 2025. A review completed on February 23, 2026, determined that some personal information (name and other data elements) was contained in the affected files. Ericsson is offering identity protection services to affected individuals.

J jump to incidentP pin to compareR raw source

California clockDiscovered Apr 28, 2025 → Notified Mar 9, 2026315d ✗ CA 60-day late45 weeks discovery → filing

Incident timeline

undetected · 11 days

discovery → filing · 45 weeks / 315 days

Apr 17, 2025

Begins

Apr 28, 2025

Discovered

Mar 9, 2026

Filed

This filing is one of 8 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (7) · sorted by filing gap

Maine State AGbd_1d0da259aa3724972026-03-09Candidate
New Hampshire State AGbd_4b391d16ed54393e2026-03-09Verified
Texas State AGbd_b7aab07b8740f4412026-03-09Verified
Massachusetts State AGbd_b8d08f1c8833b8f02026-03-09Verified

Show 3 more filings ↓

Vermont State AGbd_b9339ad22885050f2026-03-09Verified
Nebraska State AGbd_dcb9b2488cc2223a2026-03-09Verified
Indiana State AGbd_f086a2ecb41cecd32026-03-09Verified by operator

Name: Ericsson Inc.
norm: ericsson
Domain: ericsson.com

Name: Ericsson Inc.
norm: ericsson
Domain: ericsson.com
Industry: Telecom & MediallmTechnologyllm

Discovered: Apr 28, 2025
Breach occurred: Apr 17, 2025 – Apr 22, 2025
Undetected for: 11 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 9, 2026
Affected individuals: Not disclosed
Data types: Identity (basic)
Attack vector: Third-Party / Supply Chain
Threat actor: External
Regulator citations: Notified the Federal Bureau of Investigation
Third party: via Service Provider

During the incident: Initiated an investigation with the assistance of external cybersecurity specialists
Notified the Federal Bureau of Investigation
Implemented measures to enhance security and minimize the risk of a similar incident occurring in the future
Retained external data specialists to conduct a comprehensive review of the potential affected files
Offering complimentary identity protection services through IDX
Changes made: Implemented measures to enhance security and minimize the risk of a similar incident occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 45 weeks(315 days from discovery to filing)
Compliance flags: CA 60-day late · 315d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Apr 28, 2025
→ Notified: Mar 9, 2026
315d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Apr 28, 2025 → Notified: Mar 9, 2026	315d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 8 filings · 8 states

View merged incident ↗

Maine State AGMar 9 · first

New Hampshire State AGMar 9 · first

Texas State AGMar 9 · first

Massachusetts State AGMar 9 · first

Vermont State AGMar 9 · first

Nebraska State AGMar 9 · first

Indiana State AGMar 9 · first

California State AGMar 9 · first · this page

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://oag.ca.gov/ecrime/databreach/reports/sb24-619823
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 9, 2026
Raw hash: ea9854579f818578328719d353a8984ef12fe9da104606512b91a09f586c4ea5

Linked disclosures

Regulatory filings (7) · sorted by filing gap

Reporting entityEricsson Inc.

Victim entityEricsson Inc.

Incidentdiscovered Apr 28, 2025

Stated responseInitiated an investigation with the assistance of external cybersecurity specialists

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov