HackingFinancial ServicesFinanceVulnerability ExploitData ExfiltratedCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDMediumContained

1st Source Bank

bd_d0cebba25691bccf · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 1, 2023

Filed

Jul 20, 2023

To disclose

7 weeks

Affected

777state residents only

Linked

10 filings

Confidence

69%

Full breach record for 1st Source Bank →6 incidents on file

1st Source Bank notified Washington AG of a supplemental notice for 6 additional residents affected by the MOVEit vulnerability. Total WA residents notified: 777. Incident discovered June 1, 2023; data accessed June 1, 2023. Data included names, SSNs, driver's licenses, DOBs. Initial notifications sent July 2023.

J jump to incidentP pin to compareR raw source

Washington clock⏱ WA AG >30d7 weeks discovery → filing

⚠ occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Incident timeline

discovery → filing · 7 weeks / 49 days

Jun 1, 2023

Begins

Jun 1, 2023

Discovered

Jul 20, 2023

Filed

vs. sector median

3 wks faster

This filing is one of 10 filings about the same incident.View merged incident

Part of Progress Software Corporation supply-chain incident (2023) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (9) · sorted by filing gap

Oregon State AGbd_db8e5883d0d70d122023-07-20Verified
California State AGbd_504a71c703e7184f2023-07-19 · +1dVerified
Montana State AGbd_644846888cf47c7f2023-07-19 · +1dVerified
Maine State AGbd_ee5f8afdf477969e2023-07-19 · +1dVerified

Show 5 more filings ↓up to 10d gap

California State AGbd_4a59c8811709f62b2023-07-26 · +6dVerified
New Hampshire State AGbd_fda2be588d0437762023-07-26 · +6dVerified
Vermont State AGbd_a872f10fb82b1c592023-07-14 · +6dCandidate
Oregon State AGbd_08c27ccfede4e9ef2023-07-27 · +7dVerified
SEC 8-Kbd_66ec9f2d6644e6032023-07-10 · +10dVerified

Name: Constangy, Brooks, Smith & Prophete, LLP
norm: constangy brooks smith prophete

Name: 1st Source Bank
norm: 1st source bank
Industry: Financial Servicesllm

Discovered: Jun 1, 2023
Breach occurred: Jun 1, 2023
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 14, 2023
Affected individuals: 777state-resident count only
Data types: Identity (basic)Government ID
Data elements: NameSocial Security numberDriver's licence numberDate of birth
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 0dexposure 0d
WA-stated discovery: Found while ongoingContained same day
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified Attorney General Bob Ferguson
Initial access: exploit_public_facing

During the incident: Engaged leading, independent cybersecurity experts to conduct a comprehensive investigation
Partnering with Kroll to provide access to complimentary identity monitoring services
Notified affected individuals via U.S. First-Class Mail
Changes made: Patched MOVEit system in accordance with Progress Software’s instructions
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(49 days from discovery to filing)
Compliance flags: WA AG >30d
Discovery-date grounding: occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 10 filings · 7 states

View merged incident ↗

SEC 8-KJul 10 · first

Vermont State AG+4d

California State AG+9d

Montana State AG+9d

Maine State AG+9d

Oregon State AG+10d

Washington State AG+10d · this page

California State AG+16d

New Hampshire State AG+16d

Oregon State AG+17d

Pattern: first filing Jul 10, last Jul 27 (OR) — a 17-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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA25897.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 20, 2023
Raw hash: 2e75648ba83bfab373df525138acf87c45deaf74937bfff86fd0c57bd001cde5

Linked disclosures

Regulatory filings (9) · sorted by filing gap

Reporting entityConstangy, Brooks, Smith & Prophete, LLP

Victim entity1st Source Bank

Incidentdiscovered Jun 1, 2023

Stated responseEngaged leading, independent cybersecurity experts to conduct a comprehensive investigation

ComplianceWA AG >30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com