Social EngineeringHealthcareHealthcarePhishingBECTargetedData ExfiltratedIdentity (basic)Government IDFinancial accountHealth (basic)PHIMediumContained

American Anesthesiology, Inc.

bd_e15ee1d94ffae17e · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 16, 2020

Filed

Jan 8, 2021

To disclose

25 weeks

Affected

505state residents only

Confidence

69%

North American Partners in Anesthesia reported a security incident involving its business associate, MEDNAX Services, Inc. An unauthorized party accessed American Anesthesiology email accounts via phishing between June 17-22, 2020. The incident exposed patient PII, PHI, SSNs, and financial data for 505 Washington residents. Remediation included password resets, system migration, and MFA implementation.

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Washington clock✗ WA AG >90d25 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 29 days

discovery → filing · 25 weeks / 176 days

Jun 17, 2020

Begins

Jul 16, 2020

Discovered

Jan 8, 2021

Filed

vs. sector median

+13 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed505 affectedView incident

Name: North American Partners in Anesthesia
norm: north american partners in anesthesia

Name: American Anesthesiology, Inc.
norm: american anesthesiology
Industry: Healthcarellm

Discovered: Jul 16, 2020
Breach occurred: Jun 17, 2020 – Jun 22, 2020
Undetected for: 29 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 15, 2021
Affected individuals: 505state-resident count only
Data types: Identity (basic)Government IDFinancial accountHealth (basic)PHI
Data elements: NameSocial Security numberDriver's licence numberHealth insurance IDMedical informationDate of birth
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found after the fact
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1114 Email Collection
Threat actor: ExternalFinancial
Regulator citations: Reported to the U.S. Department of Health and Human Services pursuant to 45 CFR §164.408Notified Washington Attorney General
Third party: via MEDNAX Services, Inc.
Initial access: phishing_link

During the incident: Terminated the unauthorized party’s access to the O365 System
Resetting each user’s password for the email accounts where unauthorized activity was detected
Moved email accounts on the O365 system to our email system
Added authentication requirements to restrict access to the email accounts
Offering one year of credit monitoring through Experian IdentityWorks
Changes made: Introducing additional authentication and security training requirements for all employees in 2021 to counteract phishing and other social engineering techniques
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 25 weeks(176 days from discovery to filing)
Compliance flags: WA AG >90d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachM10384.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 8, 2021
Raw hash: 31920f1184bf01c4e905151a4772e1171a32c5baed55768d49e18e0ac36210bc

Reporting entityNorth American Partners in Anesthesia

Victim entityAmerican Anesthesiology, Inc.

Incidentdiscovered Jul 16, 2020

Stated responseTerminated the unauthorized party’s access to the O365 System

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com