HackingProfessional ServicesProfessional ServicesCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDFinancial accountMediumContained

Datamate Bookkeeping & Tax, Inc

bd_028e74dc777aa06b · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 10, 2023

Filed

Jun 16, 2024

To disclose

27 weeks

Affected

Not disclosed

Linked

5 filings

Confidence

65%

Full breach record for Datamate Bookkeeping & Tax, Inc →2 incidents on file

Datamate Bookkeeping & Tax, Inc. reported that an unauthorized third party gained access to its network from September 23, 2023, to December 10, 2023. The company became aware of suspicious activity on December 10, 2023. Affected data included names, addresses, Social Security numbers, dates of birth, bank account numbers, and routing numbers. Datamate engaged forensic investigators, secured its network, migrated data to a secure cloud platform with MFA, and offered 12 months of credit monitoring.

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California clockDiscovered Dec 10, 2023 → Notified Jun 12, 2024185d ✗ CA 60-day late27 weeks discovery → filing

Incident timeline

undetected · 78 days

discovery → filing · 27 weeks / 189 days

Sep 23, 2023

Begins

Dec 10, 2023

Discovered

Jun 16, 2024

Filed

vs. sector median

+8 wks slower

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

Idaho State AGbd_6a81ef41c5b7dc882024-06-18 · +2dVerified
California State AGbd_bd792006b3503cf02024-06-12 · +4dCandidate
Massachusetts State AGbd_c77b7b55f55f9d0a2024-06-12 · +4dVerified
Montana State AGbd_e97a9caf441c781b2024-06-12 · +4dVerified

Name: Datamate Bookkeeping & Tax, Inc
norm: datamate bookkeeping tax

Name: Datamate Bookkeeping & Tax, Inc
norm: datamate bookkeeping tax
Industry: Professional Servicesllm

Discovered: Dec 10, 2023
Breach occurred: Sep 23, 2023 – Dec 10, 2023
Undetected for: 78 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 12, 2024
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External

During the incident: Disconnected all access to the network
Engaged a specialized third-party cybersecurity firm and IT personnel to assist with securing the environment
Conducted a comprehensive forensic investigation to determine the nature and scope of the incident
Migrated all customer data off the legacy IT systems and into a secure, cloud-based platform protected with multifactor authentication and encryption
Moved to new work personal computers, all of which are protected by encryption and multifactor authentication
All company IT systems are running endpoint security tools, monitored by a third party
Upgraded the company network with enhanced network monitoring and security
Enhanced security measures for company email accounts
Transitioned the tax filing systems to cloud-based systems
Implemented access restrictions to Datamate’s information systems
Provided all employees with cyber-security and compliance training
Providing 12 months of complimentary credit monitoring and identity theft restoration services through Cyberscout
Changes made: Migrated all customer data off the legacy IT systems and into a secure, cloud-based platform protected with multifactor authentication and encryption
Moved to new work personal computers, all of which are protected by encryption and multifactor authentication
All company IT systems are running endpoint security tools, monitored by a third party
Upgraded the company network with enhanced network monitoring and security
Enhanced security measures for company email accounts
Transitioned the tax filing systems to cloud-based systems
Implemented access restrictions to Datamate’s information systems
Provided all employees with cyber-security and compliance training
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 27 weeks(189 days from discovery to filing)
Compliance flags: CA 60-day late · 185d
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 10, 2023
→ Notified: Jun 12, 2024
185d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Dec 10, 2023 → Notified: Jun 12, 2024	185d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 4 states

View merged incident ↗

California State AGJun 12 · first

Massachusetts State AGJun 12 · first

Montana State AGJun 12 · first

California State AG+4d · this page

Idaho State AG+6d

Pattern: first filing Jun 12 (CA), last Jun 18 (ID) — 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/sb24-586991
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 16, 2024
Raw hash: 43dffadef15652af7e5cdd8abf16a1666fdfb6b4b48afea1121967f0fcb8175c

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityDatamate Bookkeeping & Tax, Inc

Victim entityDatamate Bookkeeping & Tax, Inc

Incidentdiscovered Dec 10, 2023

Stated responseDisconnected all access to the network

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov