HackingOtherStolen CredentialsEmployee Data InvolvedIdentity (basic)Government IDEmploymentMediumContained

INTERNATIONAL AIDS VACCINE INITIATIVE, INC.

bd_11c8c4c7d6937659 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 22, 2024

Filed

Nov 13, 2025

To disclose

—

Affected

35state residents only

Linked

6 records

Confidence

65%

Full breach record for INTERNATIONAL AIDS VACCINE INITIATIVE, INC. →

International AIDS Vaccine Initiative (IAVI) notified the Maryland Attorney General of a security breach occurring between December 18 and 22, 2024. The incident involved unauthorized access to human resources data, exposing the names and Social Security numbers of 35 Maryland residents. IAVI detected the network interruption on December 22, 2024, engaged external cybersecurity professionals, and began notifying affected individuals on January 17, 2025, offering one year of credit monitoring.

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Incident timeline

undetected · 4 days

Dec 18, 2024

Begins

Dec 22, 2024

Discovered

Nov 13, 2025

Filed

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

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteinc_ransombd_f824aac64b975b6c2025-01-27 · +290dVerified by operator

Regulatory filings (4) · sorted by filing gap

Maryland State AGbd_525dec9d17d94abf2025-11-13Verified by operator
New Hampshire State AGbd_067f38e4a27c3d5f2025-01-27 · +290dVerified by operator
Massachusetts State AGbd_1d8f4dae917d06d12025-01-22 · +295dVerified by operator
Vermont State AGbd_44c001f86313eeb02025-01-17 · +300dVerified by operator

Name: MCDONALD HOPKINS LLC
norm: mcdonald hopkins

Name: INTERNATIONAL AIDS VACCINE INITIATIVE, INC.
norm: international aids vaccine initiative
Domain: iavi.org
Industry: Otherllm

Discovered: Dec 22, 2024
Breach occurred: Dec 18, 2024 – Dec 22, 2024
Undetected for: 4 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 17, 2025
Affected individuals: 35state-resident count only
Data types: Government IDIdentity (basic)
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notification to the Office of the Maryland Attorney General
Initial access: valid_credentials

During the incident: Acted quickly to contain the threat and ensure the security of its systems with the assistance of external cybersecurity professionals
Commenced a prompt and thorough investigation into the incident
Worked very closely with external cybersecurity professionals experienced in handling these types of situations
Provided the affected residents with notification of this incident
Offering the affected residents whose Social Security number was potentially impacted by the incident with complimentary one-year membership with a credit monitoring service
Changes made: Continually evaluates and modifies its practices to enhance the security and privacy of the personal information it maintains
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.

Filing propagation · 5 filings · 4 states

View merged incident ↗

Vermont State AGJan 17 · first

Massachusetts State AG+5d

New Hampshire State AG+10d

Maryland State AG+300d

Maryland State AG+300d · this page

Pattern: first filing Jan 17 (VT), last Nov 13 (MD) — a 300-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.maryland.gov/resources-info/SBN%20Documents/2025/ITU-376215.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 13, 2025
Raw hash: a723022b066ecf3bb2b6df80effc553f5edb3d7a7e3e2cbe6a9c9a7589cf4b50

Linked disclosures

Ransomware claims (1)

Regulatory filings (4) · sorted by filing gap

Reporting entityMCDONALD HOPKINS LLC

Victim entityINTERNATIONAL AIDS VACCINE INITIATIVE, INC.

Incidentdiscovered Dec 22, 2024

Stated responseActed quickly to contain the threat and ensure the security of its systems with the assistance of external cybersecurity professionals

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.maryland.gov