Ericsson

Disclosed Mar 9, 202615,661 affectedConfirmed

Ericsson US says vendor hack exposed data of 15,661 employees and customers

Ericsson Inc. told state attorneys general that attackers breached a service provider in April 2025 and stole files holding SSNs, ID numbers, financial and medical data of 15,661 people.

What is known

People affected	15,661 (as reported by the organization)
Disclosed	Mar 9, 2026
Discovered	Apr 28, 2025
Happened	Apr 17, 2025
Attack	Vendor breach
Data exposed	NamesAddressesSocial Security numbersGovernment IDsFinancialHealthDates of birthPayment cards
Sector	Telecom · US
Status	Confirmed

Sources

Official noticeoag.ca.gov

California Attorney General breach notice: Ericsson

Newsbleepingcomputer.com

Ericsson US discloses data breach after service provider hack

Official noticeoag.my.site.com

Texas Attorney General data security breach report BR-0004894: Ericsson

Official noticeago.vermont.gov

Vermont Attorney General: 2026-03-09 Ericsson Data Breach Notice to Consumers

Notices filed

Residents of CAMar 9

California AGCount not stated

TotalMar 9

Research15,661 people

Residents of TXMar 9

Texas AG4,377 people

Residents of VTMar 9

Vermont AGCount not stated

History of this record

source2026-09-25

empty to https://ago.vermont.gov/document/2026-03-09-ericsson-data-breach-notice-consumersby backfillSource

data_types2026-09-25

["names","addresses","ssn","government-id","financial","health","dob"] to ["names","addresses","ssn","government-id","financial","health","dob","payment-card"]by backfillSource

sector2026-09-25

other to telecomby seedSource

attack2026-09-25

unknown to third-partyby seedSource

data_types2026-09-25

[] to ["names","addresses","ssn","government-id","financial","health","dob"]by seedSource

records_basis2026-09-25

empty to organizationby seedSource

records2026-09-25

empty to 15661by seedSource

discovered2026-09-25

empty to 2025-04-28by seedSource

summary2026-09-25

empty to Ericsson Inc. told state attorneys general that attackers breached a service provider in April 2025 and stole files holding SSNs, ID numbers, financial and medical data of 15,661 people.by seedSource

title2026-09-25

empty to Ericsson US says vendor hack exposed data of 15,661 employees and customersby seedSource

Added2026-09-25

First recordedby backfillSource

First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.

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