Social EngineeringPhishingStolen CredentialsCustomer Data InvolvedPIIIdentity (basic)LowContained

Killer Instinct, Inc.

bd_63c8c421aba0a342 · schema v1 · pii pii-v1

Severity

Low

Discovered

Oct 28, 2022

Filed

Apr 5, 2023

To disclose

23 weeks

Affected

4state residents only

Linked

3 filings

Confidence

65%

Full breach record for Killer Instinct, Inc. →

Killer Instinct, Inc. notified the New Hampshire Attorney General of a data event affecting 4 NH residents. Suspicious activity on an employee email account was detected on Oct 28, 2022, indicating unauthorized access between Oct 12-28, 2022. The incident likely resulted from phishing leading to credential compromise. Personal information was potentially impacted. Notices were sent on March 31, 2023, offering 12 months of credit monitoring.

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Incident timeline

undetected · 16 days

discovery → filing · 23 weeks / 159 days

Oct 12, 2022

Begins

Oct 28, 2022

Discovered

Feb 8, 2023

Scope determined

Apr 5, 2023

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

Maine State AGbd_40d9c21d80e9135b2023-03-31 · +5dCandidate
Indiana State AGbd_509f42a0d92526072023-03-31 · +5dVerified

Name: Killer Instinct, Inc.
norm: killer instinct

Name: Killer Instinct, Inc.
norm: killer instinct

Discovered: Oct 28, 2022
Breach occurred: Oct 12, 2022 – Oct 28, 2022
Undetected for: 16 daysoccurrence → discovery
Materiality determined: Feb 8, 2023
Notification sent: Mar 31, 2023
Affected individuals: 4state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: External
Regulator citations: Notified Office of the New Hampshire Attorney General
Initial access: phishing_link

During the incident: Launched an investigation to determine the nature and scope of the incident
Conducted a thorough and time intensive review of relevant emails and attachments
Provided access to credit monitoring services for twelve (12) months, through Experian
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Changes made: Working to implement additional security measures to further protect against similar incidents in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 23 weeks(159 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Maine State AGMar 31 · first

Indiana State AGMar 31 · first

New Hampshire State AG+5d · this page

Pattern: first filing Mar 31 (ME), last Apr 5 (NH) — a 5-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/killer-instinct-20230405.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 5, 2023
Raw hash: 78d9fd7619ab6d08189ccdd6e0142d97b34453ff7694dcc880c64411f33aa968

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityKiller Instinct, Inc.

Victim entityKiller Instinct, Inc.

Incidentdiscovered Oct 28, 2022

Stated responseLaunched an investigation to determine the nature and scope of the incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov