MisuseFinancial ServicesFinancePrivilege AbuseEmployee Data InvolvedIdentity (basic)Financial accountLowResolved

Citibank N.A.

bd_216287a90d030dea · schema v1 · pii pii-v1

Severity

Low

Discovered

Dec 14, 2021

Filed

Mar 2, 2022

To disclose

11 weeks

Affected · nationwide

2301 in this filing

Linked

4 filings

Confidence

66%

Full breach record for Citibank N.A. →51 incidents on file

Citibank, N.A. reported an insider wrongdoing incident affecting 230 individuals, including 1 Maine resident. The breach occurred between January 1, 2020, and June 1, 2021, and was discovered on December 14, 2021. Acquired data included names and financial account or credit/debit card numbers (with security codes/PINs). Consumers received written notification on February 24, 2022, and were offered 12 months of credit monitoring through Experian.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Dec 14, 2021 → Filed with AG Mar 2, 202278d ⏱ ME AG >30d11 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 713 days

discovery → filing · 11 weeks / 78 days

Jan 1, 2020

Begins

Dec 14, 2021

Discovered

Mar 2, 2022

Filed

vs. sector median

+2 wks slower

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

New Hampshire State AGbd_d8ce164c1b539e0d2022-03-02Verified
Montana State AGbd_f12f8711a59b7dbc2022-02-24 · +6dVerified
Massachusetts State AGbd_523898bff59087162022-02-22 · +8dCandidate

Name: Citibank N.A.
norm: citibank na
Domain: citi.com

Name: Citibank N.A.
norm: citibank na
Domain: citi.com
Industry: Financial Servicesllm

Discovered: Dec 14, 2021
Breach occurred: Jan 1, 2020 – Jun 1, 2021
Undetected for: 713 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 24, 2022
Affected individuals: 230state + nationwide
Data types: Identity (basic)Financial account
Data elements: Financial account number
Attack vector: Insider
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: Internal
Regulator citations: Filed data breach notice with Maine Attorney General
Initial access: insider_action

During the incident: Sent written notification to affected consumers
Offered 12 months credit monitoring through Experian
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 11 weeks(78 days from discovery to filing)
Compliance flags: ME AG >30d · 78dME resident >60d · 72d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Dec 14, 2021
→ Filed with AG: Mar 2, 2022
78d 30 days (soft) ME AG >30d
Maine
Discovered: Dec 14, 2021
→ Notified: Feb 24, 2022
72d 60 days (analyst band; statutory cap is 30 days) ME resident >60d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Dec 14, 2021 → Filed with AG: Mar 2, 2022	78d	30 days (soft)	ME AG >30d
Maine	Discovered: Dec 14, 2021 → Notified: Feb 24, 2022	72d	60 days (analyst band; statutory cap is 30 days)	ME resident >60d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Massachusetts State AGFeb 22 · first

Montana State AG+2d

New Hampshire State AG+8d

Maine State AG+8d · this page

Pattern: first filing Feb 22 (MA), last Mar 2 (ME) — a 8-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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/19b125c5-4382-4509-b12c-bb18414df35d.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 2, 2022
Raw hash: cec38379e1fc9bbdfa18f2eec4eda53e6603f60f76d0575c196e7fdd3034817d

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityCitibank N.A.

Victim entityCitibank N.A.

Incidentdiscovered Dec 14, 2021

Stated responseSent written notification to affected consumers

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov