UnknownGovernment IDMedium

TELEPHONE AND DATA SYSTEMS, INC.

bd_6b760a3cdf9319f0 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Jun 23, 2021

To disclose

—

Affected

1state residents only

Linked

4 filings

Confidence

95%

Full breach record for TELEPHONE AND DATA SYSTEMS, INC. →

Telephone and Data Systems, Inc. reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2021-06-23. 1 Massachusetts residents were affected. The report records the breach type as electronic.

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Massachusetts clock✓ MA credit monitoring due

⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Incident timeline — partial

? — ?

Breach window unknown

Jun 23, 2021

Filed

—

Corroborated · see linked filings

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Maine State AGbd_61bad7cf83045f492021-06-23Candidate
Indiana State AGbd_5b2392ef9a37b89a2021-06-24 · +1dVerified
Maine State AGbd_675d3d607620e8fc2021-08-03 · +41dVerified

Name: TELEPHONE AND DATA SYSTEMS, INC.
norm: telephone and data

Name: TELEPHONE AND DATA SYSTEMS, INC.
norm: telephone and data

Discovered: —
Materiality determined: —
Notification sent: —
Affected individuals: 1state-resident count only
Data types: Government ID
Data elements: Social Security number
Stated not affected: Financial account numberDriver's licence numberPayment card number
The filing states these were not involved. Categories absent from both lists were not addressed either way.
Attack vector: Unknown

Compliance flags: MA credit monitoring due
Discovery-date grounding: no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 3 states

View merged incident ↗

Maine State AGJun 23 · first

Massachusetts State AGJun 23 · first · this page

Indiana State AG+1d

Maine State AG+41d

Pattern: first filing Jun 23 (ME), last Aug 3 (ME) — a 41-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://www.mass.gov/doc/data-breach-report-2021/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 23, 2021
Raw hash: 6210cf2db8aea2bb7b9cdc39241c7c903e6d7da9c6d774b2333f0f5d02a0aedb

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityTELEPHONE AND DATA SYSTEMS, INC.

Victim entityTELEPHONE AND DATA SYSTEMS, INC.

IncidentUnknown

ComplianceMA credit monitoring due

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov