T-MOBILE USA, INC.
7 disclosures across 5 jurisdictions · 2021-11-29 → 2026-03-31. Severity score: 10 across 4 incidents (max per incident: crit=4 high=3 med=2 low=1; per-filing sum: 14).
Scope. This scorecard covers filings naming this entity record. Related records are scored separately: DEUTSCHE TELEKOM AG (parent record).
1825-day window · this entity as victim
apparent from filed dates · see trail
of 3 clock verdicts
max per incident · per-filing sum: 14
Sector context · Information
- This entity:
- 66.7% on-time (n=3 clock verdicts)
- Sector cohort:
- 23.5% on-time (n=1,066 clock verdicts)
Cohort: 2,876 filings from 1,305 organisations carrying NAICS 51 on the filing itself, same 1825-day window; merged entities counted once. Both percentages count clock verdicts through the same registry — a filing with no evaluable clock is excluded from both rather than counted as on time.
Compliance timing by regulator
Notice timing computed from the dates recorded in each filing — an indicative estimate from an automated clock, not a legal determination. Click any chip for this entity's source filings.
- Maine1 on-time · 1 review · 0 late · 2
- Washington1 on-time · 0 late · 1
- Massachusetts0 on-time · 0 late · 1 informational · 1
- Leak gap6 leak preceded filing
Discovery dates behind these clocks: 3 ag web form. Only a date the notification letter itself states is fully defensible; a date derived from another field makes the verdict indicative.
Regulators holding filings from this entity
Every regulator that has received a visible filing naming this entity, all time — filings first.
- Massachusetts State AG (15)
- New Hampshire State AG (8)
- California State AG (3)
- Indiana State AG (3)
- Montana State AG (3)
- Maine State AG (2)
- Washington State AG (2)
- Delaware State AG (1)
- Illinois State AG (1)
- Oregon State AG (1)
- South Carolina State AG (1)
Breach History (5-Year Lookback)
Historical incident recurrence, cumulative exposure, and per-jurisdiction compliance record
within lookback window
late notice filings
median days between incidents
Per-jurisdiction compliance record
| Jurisdiction | On-time | Late | Rate |
|---|---|---|---|
| us-in | 0 | 0 | — |
| us-ma | 0 | 0 | — |
| us-me | 1 | 1 | 50% |
| us-nh | 0 | 0 | — |
| us-wa | 1 | 0 | 100% |
Cumulative data type exposure
Disclosure timeline
Most-recent 100 filings. Click a row to open the disclosure detail.
| Filed | Source | Jurisdiction | Severity | Affected | Clocks missed |
|---|---|---|---|---|---|
| 2026-03-31 | state_ag | us-me | Medium | 1state | |
| 2023-04-28 | state_ag | us-ma | Medium | 17state | |
| 2023-04-28 | state_ag | us-me | Medium | 836 | ME AG >30d· discovery date: ag web form |
| 2023-04-28 | state_ag | us-in | Low | 836 | |
| 2023-01-19 | state_ag | us-wa | High | 772.6Kstate | |
| 2022-03-08 | state_ag | us-ma | Low | 1state | |
| 2021-11-29 | state_ag | us-nh | High | 116.1Kstate |