HackingTechnologyInformationStolen CredentialsData ExfiltratedEmployee Data InvolvedDelayed DiscoveryEmploymentIdentity (basic)Government IDMediumContained

Insomniac Games

bd_57053fe08ba6b20c · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 11, 2023

Filed

Feb 22, 2024

To disclose

10 weeks

Affected

Not disclosed

Linked

5 filings

Confidence

64%

Full breach record for Insomniac Games →

Insomniac Games notified employees of a cybersecurity incident where an unauthorized actor accessed IT systems and downloaded files containing employment and personal information between November 25-26, 2023. The company identified the access in late 2023, took systems offline, and engaged external experts. This supplemental notice confirms the data types affected and offers two years of credit monitoring.

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California clockDiscovered Dec 11, 2023 → Notified Feb 23, 202474d ✗ CA 60-day late10 weeks discovery → filing

Incident timeline

undetected · 16 days

discovery → filing · 10 weeks / 73 days

Nov 25, 2023

Begins

Dec 11, 2023

Discovered

Feb 22, 2024

Filed

vs. sector median

8 wks faster

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Indiana State AGbd_47cad5d40799df682024-02-22Verified
New Hampshire State AGbd_80642d152ae6bdce2024-02-22Verified
Vermont State AGbd_ff05ac4460ff3c842024-02-22Verified
Massachusetts State AGbd_b484e38d5d9a1c932024-02-23 · +1dVerified

Name: Insomniac Games
norm: insomniac games
Domain: insomniac.games

Name: Insomniac Games
norm: insomniac games
Domain: insomniac.games
Industry: Technologyllm

Discovered: Dec 11, 2023
Breach occurred: Nov 25, 2023 – Nov 26, 2023
Undetected for: 16 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 23, 2024
Affected individuals: Not disclosed
Data types: EmploymentIdentity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notified law enforcement

During the incident: Took certain systems offline
Launched investigation with assistance from external cybersecurity experts
Notified law enforcement
Strengthened security controls
Offering two years of complimentary ID Watchdog credit monitoring and identity restoration services
Changes made: Strengthened security controls
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(73 days from discovery to filing)
Compliance flags: CA 60-day late · 74d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Dec 11, 2023
→ Notified: Feb 23, 2024
74d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Dec 11, 2023 → Notified: Feb 23, 2024	74d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Indiana State AGFeb 22 · first

New Hampshire State AGFeb 22 · first

Vermont State AGFeb 22 · first

California State AGFeb 22 · first · this page

Massachusetts State AG+1d

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://oag.ca.gov/ecrime/databreach/reports/sb24-581402
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 22, 2024
Raw hash: a3c596b087ba0882b0e93eaf4c1acff1258e89cfebc41d2e5efd7a2548ead298

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityInsomniac Games

Victim entityInsomniac Games

Incidentdiscovered Dec 11, 2023

Stated responseTook certain systems offline

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov