HackingFinancial ServicesFinanceCustomer Data InvolvedPIIIdentity (basic)Financial accountMediumContained

AMERIPRISE FINANCIAL, INC.

bd_4ca343f72bba0d38 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 18, 2026

Filed

Apr 17, 2026

To disclose

4 weeks

Affected

1,880state residents only

Linked

16 filings

Confidence

67%

Full breach record for AMERIPRISE FINANCIAL, INC. →75 incidents on file

Ameriprise Financial, Inc. notified Massachusetts residents of a data security incident where an unauthorized individual gained access to stored data and files. The company blocked the access upon discovery on March 18, 2026. Affected data may include personal information such as names, addresses, and financial account numbers. Ameriprise engaged external cybersecurity experts, implemented enhanced identity verification, and is offering 12 months of credit monitoring.

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Massachusetts clock✓ MA AG ≤30d4 weeks discovery → filing

Incident timeline

discovery → filing · 4 weeks / 30 days

Mar 18, 2026

Discovered

Apr 17, 2026

Filed

vs. sector median

4 wks faster

This filing is one of 16 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Vermont State AGbd_31751275b2b0456f2026-04-17Verified
New Hampshire State AGbd_5d8be0c5042fbeeb2026-04-17Verified
Maine State AGbd_5f2a053599f5f3c92026-04-17Verified
Iowa State AGbd_87d680adebf945392026-04-17Verified

Show 6 more filings ↓up to 103d gap

Indiana State AGbd_8dfab8a7a73e8fe02026-04-17Verified
Rhode Island State AGbd_ad81226da095b63e2026-04-17Verified
Nebraska State AGbd_c43425399ec1df102026-04-17Verified
South Carolina State AGbd_7bd8e49d9e00029b2026-04-20 · +3dVerified
Texas State AGbd_0f2775856e7200e12026-04-22 · +5dVerified
New Hampshire State AGbd_ecfe28f07939f2972026-07-29 · +103dVerified

Showing first 10 of 15 linked disclosures.

Name: AMERIPRISE FINANCIAL, INC.
norm: ameriprise financial
Domain: ameriprise.com

Name: AMERIPRISE FINANCIAL, INC.
norm: ameriprise financial
Domain: ameriprise.com
Industry: Financial Servicesllm

Discovered: Mar 18, 2026
Materiality determined: —
Notification sent: —
Affected individuals: 1,880state-resident count only
Data types: PIIIdentity (basic)Financial account
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External

During the incident: Blocked unauthorized access upon discovery
Launched an investigation with the help of external cybersecurity experts
Implemented heightened monitoring of your account(s) to include enhanced identity verification procedures
Offering credit and identity monitoring through Equifax Complete Premier for 12 months at no cost
Changes made: Implemented heightened monitoring of your account(s) to include enhanced identity verification procedures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(30 days from discovery to filing)
Compliance flags: MA AG ≤30d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 10 states

View merged incident ↗

Vermont State AGApr 17 · first

New Hampshire State AGApr 17 · first

Maine State AGApr 17 · first

Iowa State AGApr 17 · first

Indiana State AGApr 17 · first

Rhode Island State AGApr 17 · first

Nebraska State AGApr 17 · first

Massachusetts State AGApr 17 · first · this page

South Carolina State AG+3d

Texas State AG+5d

New Hampshire State AG+103d

Pattern: first filing Apr 17 (VT), last Jul 29 (NH) — a 103-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 15 — the full spread may be wider.

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/2026-604-ameriprise-financial-inc/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 17, 2026
Raw hash: da5758dda90990250c6fe4bd14064c889da7dff35920edf353e30574a7b5c678

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityAMERIPRISE FINANCIAL, INC.

Victim entityAMERIPRISE FINANCIAL, INC.

Incidentdiscovered Mar 18, 2026

Stated responseBlocked unauthorized access upon discovery

ComplianceMA AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov