DisclosureLens
HackingCustomer Data InvolvedIdentity (basic)Government IDHighResolved

MTS Systems Corporation

bd_cd2dca33198531d2 · schema v1 · pii pii-v1

Severity

High

Discovered

Nov 15, 2020

Filed

Mar 23, 2021

To disclose

18 weeks

Affected · nationwide

2,6042 in this filing

Linked

3 filings

Confidence

75%
Full breach record for MTS Systems Corporation →2 incidents on file

MTS Systems Corporation reported a data breach affecting 2 Maine residents. The breach, which occurred between October 28, 2020, and November 27, 2020, was discovered on November 15, 2020. The incident was an external system breach (hacking), and the compromised information included names and Social Security numbers. The company provided 12 months of identity monitoring services through Experian to the affected individuals.

Maine clockDiscovered Nov 15, 2020 → Filed with AG Mar 23, 2021128d ✗ ME AG >90d18 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 · 18 days
discovery → filing · 18 weeks / 128 days

Oct 28, 2020

Begins

Nov 15, 2020

Discovered

Mar 23, 2021

Filed

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Filing propagation · 3 filings · 3 states

View merged incident ↗
Indiana State AGMar 23 · first
Montana State AGMar 23 · first
Maine State AGMar 23 · 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.