HackingProfessional ServicesProfessional ServicesStolen CredentialsCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDHealth (basic)MediumContained

Serco Inc.

bd_d3f7882faca3c5b5 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Aug 2, 2023

To disclose

—

Affected

Not disclosed

Linked

6 filings

Confidence

65%

Full breach record for Serco Inc. →4 incidents on file

Serco, Inc. reported a data breach on May 31, 2023, involving unauthorized access to employee personal information via a ransomware attack on a third-party platform. Affected data may include names, SSNs, DOBs, addresses, emails, and health benefit info. No evidence of misuse. NortonLifeLock monitoring provided.

J jump to incidentP pin to compareR raw source

Incident timeline

May 31, 2023

Begins

Aug 2, 2023

Filed

This filing is one of 6 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Massachusetts State AGbd_147fd7d7262cbafd2023-08-02Verified
Maine State AGbd_f4de1dd0ef969c2e2023-08-02Verified
Indiana State AGbd_81b22986e93d58cf2023-08-01 · +1dVerified
Montana State AGbd_ce7497a68195b8d42023-08-01 · +1dCandidate

Show 1 more filing ↓up to 5d gap

New Hampshire State AGbd_c62e19619a3fadab2023-08-07 · +5dVerified

Name: Serco Inc.
norm: serco
Domain: serco.com

Name: Serco Inc.
norm: serco
Domain: serco.com
Industry: Professional Servicesllm

Discovered: —
Breach occurred: May 31, 2023
Materiality determined: —
Notification sent: Aug 1, 2023
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDHealth (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: External
Initial access: valid_credentials

During the incident: Began an investigation and took action to address the incident
Information Security team is actively working with Serco to investigate the extent of the incident
Implemented necessary security measures to prevent similar occurrences in the future
Secured the services of NortonLifeLock to provide credit and identity theft monitoring services at no cost to you for one (1) year
Changes made: Implemented necessary security measures to prevent similar occurrences in the future
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Indiana State AGAug 1 · first

Montana State AGAug 1 · first

Massachusetts State AG+1d

Maine State AG+1d

California State AG+1d · this page

New Hampshire State AG+6d

Pattern: first filing Aug 1 (IN), last Aug 7 (NH) — a 6-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://oag.ca.gov/ecrime/databreach/reports/sb24-571234
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 2, 2023
Raw hash: 50bde1aa51603b22960383d084c9133c675c6550039ffa5a14cddfa5a459b42d

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entitySerco Inc.

Victim entitySerco Inc.

IncidentUnauthorized Access

Stated responseBegan an investigation and took action to address the incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov