Social EngineeringTechnologyInformationPhishingStolen CredentialsCustomer Data InvolvedMulti-Stage ChainPIICredentialsLowContained

AtriCure, Inc.

bd_ad88398e2a96a76d · schema v1 · pii pii-v1

Severity

Low

Discovered

Apr 7, 2021

Filed

Jun 4, 2021

To disclose

8 weeks

Affected

2state residents only

Linked

6 filings

Confidence

65%

Full breach record for AtriCure, Inc. →2 incidents on file

AtriCure, Inc. notified Montana residents of unauthorized access to employee email accounts between Dec 24, 2020, and Mar 8, 2021. The incident resulted from phishing leading to credential compromise. Personal information may have been accessed. AtriCure engaged forensic investigators and offered one year of Experian IdentityWorks.

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Incident timeline

undetected · 104 days

discovery → filing · 8 weeks / 58 days

Dec 24, 2020

Begins

Apr 7, 2021

Discovered

Jun 4, 2021

Filed

vs. sector median

10 wks faster

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

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

HHS OCRbd_338592893cfa9fcf2021-06-04Verified
New Hampshire State AGbd_8c61212c9977bb272021-06-04Verified
Maine State AGbd_8ed62bf8396488012021-06-04Verified
Indiana State AGbd_9cebdf7d74930d072021-06-04Verified

Show 1 more filing ↓

Massachusetts State AGbd_e542fe1b6c0baf442021-06-04Verified

Name: AtriCure, Inc.
norm: atricure
Domain: atricure.com

Name: AtriCure, Inc.
norm: atricure
Domain: atricure.com
Industry: Technologyllm

Discovered: Apr 7, 2021
Breach occurred: Dec 24, 2020 – Mar 8, 2021
Undetected for: 104 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 4, 2021
Affected individuals: 2state-resident count only
Data types: PIICredentials
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid Accounts
Threat actor: External
Initial access: phishing_link

During the incident: Took affected systems offline
Engaged professional forensic firm
Offering complimentary one-year membership with Experian’s IdentityWorks
Changes made: Enhancing existing security protocols
Re-educating staff for awareness on these types of incidents
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(58 days from discovery to filing)
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 ↗

HHS OCRJun 4 · first

New Hampshire State AGJun 4 · first

Maine State AGJun 4 · first

Indiana State AGJun 4 · first

Massachusetts State AGJun 4 · first

Montana State AGJun 4 · first · this page

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://dojmt.gov/wp-content/uploads/atriSamp.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 4, 2021
Raw hash: 91d2d61710c5a999a4c439cf632ba6cd6e034ff0922b606484b24d16dad6d7a4

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityAtriCure, Inc.

Victim entityAtriCure, Inc.

Incidentdiscovered Apr 7, 2021

Stated responseTook affected systems offline

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov