HackingFinancial ServicesFinanceStolen CredentialsSupply Chain (3P Vendor)Customer Data InvolvedFinancial accountPCIPIILowContained

Webster Five Cents Savings Bank

bd_b8058911a2e0aeba · schema v1 · pii pii-v1

Severity

Low

Discovered

—

Filed

May 8, 2026

To disclose

—

Affected

1state residents only

Linked

3 filings

Confidence

67%

Full breach record for Webster Five Cents Savings Bank →124 incidents on file

Webster Five Cents Savings Bank notified Massachusetts customers that their debit cards may have been compromised due to a security breach of a merchant's network. The bank's own systems were not breached. Customers received new debit cards and instructions to activate them, deactivate old ones, and monitor accounts for unauthorized charges. The incident involves third-party merchant compromise affecting customer financial data.

J jump to incidentP pin to compareR raw source

Incident timeline — partial

? — ?

Breach window unknown

May 8, 2026

Filed

No interval is drawn: no breach start or discovery date is on record for this filing.

This filing is one of 3 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_390eb100e2c754052026-05-08Candidate
Massachusetts State AGbd_cf8a1f1d6f2ebb7c2026-05-06 · +2dCandidate

Name: Webster Five Cents Savings Bank
norm: webster five cents savings bank
Domain: web5.com

Name: Webster Five Cents Savings Bank
norm: webster five cents savings bank
Domain: web5.com
Industry: Financial Servicesllm

Discovered: —
Materiality determined: —
Notification sent: —
Affected individuals: 1state-resident count only
Data types: Financial accountPCIPII
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain Compromise
Threat actor: Partner
Initial access: supply_chain

During the incident: Issued you a new debit card
Recommend you do not activate your new card immediately... as your old card will become inactive
Contact us at [REDACTED-PHONE] or visit one of our seven branch locations
Contact service providers that use your card to automatically bill you and provide them with your new card number
Review your deposit account activity or statements as soon as possible for any unusual or unauthorized transactions
Changes made: Sign up for Webster Five Digital Banking, a free service to you, to manage your accounts and debit card(s) online
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 · 3 filings

View merged incident ↗

Massachusetts State AGMay 6 · first

Massachusetts State AG+2d

Massachusetts State AG+2d · 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://www.mass.gov/doc/2026-723-webster-five-cents-savings-bank/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 8, 2026
Raw hash: e2567144c3199d2fb2843cc2292b9e0623e4f73cdeb5ca5e6195252cd3d17f37

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityWebster Five Cents Savings Bank

Victim entityWebster Five Cents Savings Bank

IncidentThird-Party / Supply Chain

Stated responseIssued you a new debit card

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov