HackingCustomer Data InvolvedSupply Chain (3P Vendor)IDENTITY_BASICIDENTITY_GOVERNMENTFINANCIAL_ACCOUNTMediumContained
Mercadien, P.C.
bd_2c51137b20d238be · schema v1 · pii pii-v1
Full breach record for Mercadien, P.C. →Orrstown Bank notified Massachusetts residents of a data security incident involving its third-party advisor, Mercadien, P.C. The incident, discovered on or about May 21, 2026, potentially exposed personal information including names, dates of birth, SSNs, account numbers, and government IDs. No evidence of misuse was found. The Bank provided 24 months of free credit monitoring via Experian IdentityWorks.
Massachusetts clock✓ MA AG ≤30d11 days discovery → filing
⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident
Source provenance
- Source URL
- https://www.mass.gov/doc/2026-961-orrstown-bank/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Jun 1, 2026
- Raw hash
- 641b1f2cbd23ae2e566659492ef918c0c656c4b9720c1daa0561f1797a370858
Reporting entity
- Name
- Orrstown Banknorm: orrstown bank
- Domain
- orrstown.com
Victim entity
- Name
- Mercadien, P.C.norm: mercadien
Incident
- Discovered
- May 21, 2026
- Materiality determined
- —
- Notification sent
- —
- Affected individuals
- Not disclosed
- Data types
- IDENTITY_BASICIDENTITY_GOVERNMENTFINANCIAL_ACCOUNT
- Attack vector
- Third-Party / Supply Chain
- MITRE ATT&CK
- T1195 Supply Chain Compromise
- Threat actor
- External
- Third party
- via Mercadien, P.C.
- Initial access
- supply_chain
Compliance
- Time to disclose
- 11 days(11 days from discovery to filing)
- Compliance flags
- MA AG ≤30d
- Discovery-date grounding
- unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.