HackingTechnologyInformationSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)LowContained

Ericsson Inc.

bd_b9339ad22885050f · 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

66%

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

Ericsson Inc notified Vermont AG that a third-party service provider experienced unauthorized access to files containing personal information (names, and potentially other data elements) between April 17-22, 2025. The incident was discovered on April 28, 2025. Ericsson offered complimentary identity protection services to affected individuals.

J jump to incidentP pin to compareR raw source

Vermont clock✗ VT AG >45 bday45 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 11 days

discovery → filing · 45 weeks / 315 days

Apr 17, 2025

Begins

Apr 28, 2025

Discovered

Mar 9, 2026

Filed

vs. sector median

+26 wks slower

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
California State AGbd_3ac020b40fae811c2026-03-09Verified by operator
New Hampshire State AGbd_4b391d16ed54393e2026-03-09Verified
Texas State AGbd_b7aab07b8740f4412026-03-09Verified

Show 3 more filings ↓

Massachusetts State AGbd_b8d08f1c8833b8f02026-03-09Verified
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: Technologyllm

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
MITRE ATT&CK: T1195 Supply Chain Compromise
Threat actor: External
Regulator citations: Notified the Federal Bureau of Investigation
Initial access: supply_chain

During the incident: Initiated an investigation with the assistance of external cybersecurity specialists
Notified the Federal Bureau of Investigation
Implemented measures to enhance security
Offering you complimentary identity protection services through IDX
Offering 12/24 months of credit monitoring
Offering dark web monitoring
Offering a $1 million identity fraud loss reimbursement policy
Offering fully managed identity theft recovery services
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: VT AG >45 bday
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 8 filings · 8 states

View merged incident ↗

Maine State AGMar 9 · first

California State AGMar 9 · first

New Hampshire State AGMar 9 · first

Texas State AGMar 9 · first

Massachusetts State AGMar 9 · first

Nebraska State AGMar 9 · first

Indiana State AGMar 9 · first

Vermont 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://ago.vermont.gov/document/2026-03-09-ericsson-data-breach-notice-consumers
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: 3c6785394cc5c59f1de711e243b7f154c6b8b8d171d28d4eadd0a091c1311f64

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

ComplianceVT AG >45 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov