Social EngineeringHealthcareHealthcarePhishingStolen CredentialsCustomer Data InvolvedDelayed DiscoveryPHIHealth (basic)Identity (basic)LowContained

Synergy Radiation Oncology Medical Group

bd_789c37e2e455e8b3 · schema v1 · pii pii-v1

Severity

Low

Discovered

Jun 13, 2025

Filed

Jul 15, 2025

To disclose

5 weeks

Affected

Not disclosed

Confidence

66%

Full breach record for Synergy Radiation Oncology Medical Group →

Synergy Radiation Oncology Medical Group notified patients of a phishing incident involving a former third-party vendor. Unauthorized parties accessed email and SharePoint accounts between Dec 13-16, 2024. The organization learned of the incident on June 13, 2025. Patient information including names and potentially other health data was accessed. Credit monitoring is being offered.

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Incident timeline

undetected · 182 days

discovery → filing · 5 weeks / 32 days

Dec 13, 2024

Begins

Jun 13, 2025

Discovered

Jul 15, 2025

Filed

vs. sector median

6 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident

Name: Synergy Radiation Oncology Medical Group
norm: synergy radiation oncology medical

Name: Synergy Radiation Oncology Medical Group
norm: synergy radiation oncology medical
Industry: Healthcarellm

Discovered: Jun 13, 2025
Breach occurred: Dec 13, 2024 – Dec 16, 2024
Undetected for: 182 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: PHIHealth (basic)Identity (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Third party: via former third-party vendor
Initial access: phishing_link

During the incident: Measures were taken immediately in response
A thorough investigation was conducted to determine what occurred
Offering Epiq Privacy Solutions ID credit monitoring
Changes made: Additional cybersecurity training is being provided to staff
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 weeks(32 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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/sb24-605515
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 15, 2025
Raw hash: 0aa6439233fd288199a519a0dbcd49ed84351e53e5f12cebc64f50301409a0cc

Reporting entitySynergy Radiation Oncology Medical Group

Victim entitySynergy Radiation Oncology Medical Group

Incidentdiscovered Jun 13, 2025

Stated responseMeasures were taken immediately in response

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov