Social EngineeringManufacturingManufacturingPhishingStolen CredentialsData ExfiltratedCustomer Data InvolvedIdentity (basic)Financial accountLowContained

PROAMPAC HOLDINGS INC.

bd_3caa28b4a6dc766d · schema v1 · pii pii-v2

Severity

Low

Discovered

Jun 22, 2026

Filed

Oct 16, 2026

To disclose

17 weeks

Affected

1state residents only

Linked

2 filings

Confidence

69%

Full breach record for PROAMPAC HOLDINGS INC. →

ProAmpac Holdings Inc. reported a social engineering incident where an impersonator of the IT Help Desk compromised a single employee account. Unauthorized access occurred between May 26 and June 22, 2026. The incident affected 1 New Hampshire resident, exposing name and payment card information. ProAmpac secured the account, engaged forensic experts, and notified law enforcement.

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Incident timeline

undetected · 27 days

discovery → filing · 17 weeks / 116 days

May 26, 2026

Begins

Jun 22, 2026

Discovered

Oct 16, 2026

Filed

This filing is one of 2 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Massachusetts State AGbd_1e60f74f4ee38ca32026-10-01 · +15dCandidate

Name: ProAmpac Holdings Inc.
norm: proampac holdings

Name: PROAMPAC HOLDINGS INC.
norm: proampac holdings
Industry: Manufacturingllm

Discovered: Jun 22, 2026
Breach occurred: May 26, 2026 – Jun 22, 2026
Undetected for: 27 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 1state-resident count only
Data types: Identity (basic)Financial account
Attack vector: Unknown
MITRE ATT&CK: T1566 PhishingT1078 Valid Accounts
Threat actor: External
Regulator citations: Notified the Attorney General of the State of New Hampshire
Initial access: phishing_link

During the incident: Activated its incident response protocols
Secured the affected account
Notified law enforcement
Engaged external cybersecurity experts to conduct an investigation and assess the security of its systems
Disabled the affected employee account
Reset its password and multifactor authentication
Cleared active sessions
Revoked authentication tokens
Retained a third-party to monitor online forums and marketplaces for any information relating to this event
Changes made: Strengthened its security measures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 17 weeks(116 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Massachusetts State AGOct 1 · first

New Hampshire State AG+15d · this page

Pattern: first filing Oct 1 (MA), last Oct 16 (NH) — a 15-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://mm.nh.gov/files/uploads/doj/remote-docs/proampac-holdings-20261016.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 16, 2026
Raw hash: 2070c032bfc63cf0e8ab34687e41b28a5b0467c9297927232e00e75ea9a5fed1

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityProAmpac Holdings Inc.

Victim entityPROAMPAC HOLDINGS INC.

Incidentdiscovered Jun 22, 2026

Stated responseActivated its incident response protocols

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov