HackingProfessional ServicesProfessional ServicesStolen CredentialsData ExfiltratedTargetedIdentity (basic)Government IDMediumContained

CORPORATION SERVICE COMPANY

bd_30e939b480112b38 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 5, 2018

Filed

Jun 11, 2018

To disclose

10 weeks

Affected

2state residents only

Linked

7 filings

Confidence

66%

Full breach record for CORPORATION SERVICE COMPANY →2 incidents on file

Supplemental notice from Corporation Service Company (CSC) to New Hampshire AG regarding a data event. CSC detected unauthorized access on April 5, 2018, involving data exfiltrated on November 25, 2017. A manual review confirmed the names and SSNs of 2 New Hampshire residents were compromised. CSC engaged forensic firms, notified law enforcement, and implemented security enhancements including MFA and stronger passwords. Affected individuals are offered 12 months of credit monitoring.

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Incident timeline

undetected · 131 days

discovery → filing · 10 weeks / 67 days

Nov 25, 2017

Begins

Apr 5, 2018

Discovered

Jun 11, 2018

Filed

vs. sector median

10 wks faster

This filing is one of 7 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (6) · sorted by filing gap

Montana State AGbd_0179841f383577542018-06-11Verified
Washington State AGbd_0b9793f68588a6242018-05-17 · +25dCandidate
New Hampshire State AGbd_1faa68133b09a3332018-05-17 · +25dVerified
California State AGbd_3f435c5b8cf604192018-05-17 · +25dVerified

Show 2 more filings ↓up to 25d gap

Massachusetts State AGbd_9e3380d929b63acd2018-05-17 · +25dVerified
Oregon State AGbd_bc65e9cd2ef121b42018-05-17 · +25dVerified

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: CORPORATION SERVICE COMPANY
norm: corporation service
Industry: Professional Servicesllm

Discovered: Apr 5, 2018
Breach occurred: Nov 25, 2017
Undetected for: 131 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 11, 2018
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 ChannelT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified Office of the New Hampshire Attorney General
Initial access: exploit_public_facing

During the incident: Took immediate steps to stop the activity
Informed law enforcement
Engaged two leading, independent cyber security firms
Notified impacted customers
Initiated incident response and mitigation activities
Engaged a vendor to confirm that the numbers that appeared to be Social Security numbers were Social Security numbers
Provided advanced address look-up services
Changes made: Requiring two-factor authentication on certain customer facing applications and internal administration logins
Expanding web application and other firewalls
Mandating 16-character employee passwords
Offering 12 months of free credit monitoring and identity restoration services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(67 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 7 filings · 6 states

View merged incident ↗

Washington State AGMay 17 · first

New Hampshire State AGMay 17 · first

California State AGMay 17 · first

Massachusetts State AGMay 17 · first

Oregon State AGMay 17 · first

Montana State AG+25d

New Hampshire State AG+25d · this page

Pattern: first filing May 17 (WA), last Jun 11 (NH) — a 25-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/corporation-service-20180611.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 11, 2018
Raw hash: 35c7d5d9413fd483644903eeee72845470d460927cf5b96f5eccfebb86d9a7e8

Linked disclosures

Regulatory filings (6) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityCORPORATION SERVICE COMPANY

Incidentdiscovered Apr 5, 2018

Stated responseTook immediate steps to stop the activity

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov