HackingFinancial ServicesTechnologyFinanceStolen CredentialsTargetedIdentity (basic)Financial accountFinancial credentialsLowContained

BLOCK, INC.

bd_6980ff4d88226345 · schema v1 · pii pii-v1

Severity

Low

Discovered

—

Filed

Sep 22, 2023

To disclose

—

Affected

1state residents only

Linked

3 filings

Confidence

67%

Full breach record for BLOCK, INC. →2 incidents on file

Block, Inc. (Cash App) notified Montana residents of unauthorized access to accounts using recycled phone numbers. Affected data included names, Cash App account/routing numbers, and card details (number, expiration, CVV). Block canceled affected cards, engaged forensic experts, notified law enforcement, and offered two years of credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline — partial

? — ?

Breach window unknown

Sep 22, 2023

Filed

—

Corroborated · see linked filings

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

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

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_6ae3aae96dd540eb2023-09-22Verified
Indiana State AGbd_a57aee23ea648a472023-09-26 · +4dVerified

Name: BLOCK, INC.
norm: block
Domain: block.xyz

Name: BLOCK, INC.
norm: block
Domain: block.xyz
Industry: Financial ServicesllmTechnologyllm

Discovered: —
Materiality determined: —
Notification sent: —
Affected individuals: 1state-resident count only
Data types: Identity (basic)Financial accountFinancial credentials
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified law enforcement
Initial access: valid_credentials

During the incident: Retained cybersecurity experts to assist with the investigation
Notified law enforcement
Offering two years of credit monitoring services through Cyberscout through Identity Force, a TransUnion company, at no cost
Canceled Cash App Card for protection
Changes made: Continuously improving security policies and procedures
Encouraging customers to turn on two-factor authentication for sign in
Enabling the Security Lock setting
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 · 3 states

View merged incident ↗

Massachusetts State AGSep 22 · first

Montana State AGSep 22 · first · this page

Indiana State AG+4d

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://dojmt.gov/wp-content/uploads/OCP/Consumer-notification-letter-712.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 22, 2023
Raw hash: d259e55f432adcf161cfe1ad24bd635f44ce0bf6c004cc07fa93ef72b6df269e

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityBLOCK, INC.

Victim entityBLOCK, INC.

IncidentUnauthorized Access

Stated responseRetained cybersecurity experts to assist with the investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov