HackingHealthcareHealthcareStolen CredentialsCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)LowContained

Medical Express PSI

bd_b9804cb8c69f8f3d · schema v1 · pii pii-v2

Severity

Low

Discovered

Jun 17, 2026

Filed

Aug 1, 2026

To disclose

—

Affected

Not disclosed

Confidence

64%

Full breach record for Medical Express PSI →

Medical Express PSI discovered on June 17, 2026, that an unauthorized individual accessed several employee email accounts starting June 16, 2026. The attacker concealed their activity, prompting a message-by-message review. Affected data includes names and potentially other personal information. The company disabled access, engaged forensic investigators, and is offering identity protection services.

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Incident timeline

undetected · 1 days

Jun 16, 2026

Begins

Jun 17, 2026

Discovered

Aug 1, 2026

Filed

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

Name: Medical Express PSI
norm: medical express psi

Name: Medical Express PSI
norm: medical express psi
Industry: Healthcarellm

Discovered: Jun 17, 2026
Breach occurred: Jun 16, 2026
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: Aug 14, 2026
Affected individuals: Not disclosed
Data types: Identity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: External
Regulator citations: Notified the appropriate regulatory authorities
Initial access: valid_credentials

During the incident: Disabled the unauthorized access
Engaged an outside cybersecurity firm to investigate
Conducted a careful, message-by-message review of the affected accounts
Notified the appropriate regulatory authorities
Offering identity theft protection services through IDX
Changes made: Taken, and are continuing to take, steps to further strengthen the security of our email systems and safeguards
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.

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://www.mass.gov/doc/2026-1370-psi-premier-specialties-inc-dba-medical-express-psi/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 1, 2026
Raw hash: d1221722f7a2b06c98603810be46aca29f0833a0b9ecacca0f5e16537c282dda

Reporting entityMedical Express PSI

Victim entityMedical Express PSI

Incidentdiscovered Jun 17, 2026

Stated responseDisabled the unauthorized access

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov