Social EngineeringRetail & ConsumerRetailVishingStolen CredentialsCapture Stored DataData ExfiltratedCustomer Data InvolvedMulti-Stage ChainIdentity (basic)Government IDMediumActive

Carnival Corporation Ltd.

bd_bb55a8f7f97eb1fb · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 14, 2026

Filed

May 27, 2026

To disclose

6 weeks

Affected

Not disclosed

Linked

16 filings

Confidence

66%

Full breach record for Carnival Corporation Ltd. →14 incidents on file

Carnival Corporation notified Iowa AG of a cybersecurity event where an unauthorized actor used vishing to obtain employee credentials on April 10, 2026. The actor exfiltrated personal information including names, addresses, DOBs, and government IDs. Discovery was April 14, 2026. Notifications began May 27, 2026, offering 24 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Iowa clock✓ IA AG ≤5 bday6 weeks 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.

Incident timeline

undetected · 4 days

discovery → filing · 6 weeks / 43 days

Apr 10, 2026

Begins

Apr 14, 2026

Discovered

May 27, 2026

Filed

vs. sector median

1 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

Washington State AGbd_06ca13775dc757a32026-05-27Verified
Nebraska State AGbd_1a1bc5215fd93cf02026-05-27Verified
Maine State AGbd_24671352cfb8e0c52026-05-27Verified
Indiana State AGbd_403cc5ab7d0963812026-05-27Verified

Show 6 more filings ↓up to 1d gap

Oregon State AGbd_6d8af3869b6bca552026-05-27Verified
California State AGbd_843aca78131302882026-05-27Verified
Texas State AGbd_104c3479219b55d22026-05-28 · +1dVerified
Massachusetts State AGbd_2fa8add804519bbe2026-05-28 · +1dVerified
Vermont State AGbd_a217ec232607f2bd2026-05-28 · +1dVerified
South Carolina State AGbd_b40f7e0268a40f142026-05-28 · +1dVerified

Showing first 10 of 15 linked disclosures.

Name: Carnival Corporation Ltd.
norm: carnival
Domain: carnivalcorp.com

Name: Carnival Corporation Ltd.
norm: carnival
Domain: carnivalcorp.com
Industry: Retail & Consumerllm

Discovered: Apr 14, 2026
Breach occurred: Apr 10, 2026
Undetected for: 4 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 27, 2026
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Phishing
MITRE ATT&CK: T1566.003 Spearphishing VoiceT1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: reported this incident to law enforcement
Initial access: phishing_link

During the incident: Initiated its incident response processes to swiftly block the unauthorized activity
Began working with third party security expects to investigate what happened and what data was affected
Reported this incident to law enforcement
Established a dedicated call center to answer questions related to this incident
Offering these individuals two years of complimentary identity monitoring services, including credit monitoring, identity theft restoration services, and/or cyber monitoring
Changes made: Enhancing our security and monitoring controls
Advance its IT security and data privacy controls
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 6 weeks(43 days from discovery to filing)
Compliance flags: IA AG ≤5 bday
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.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 11 states

View merged incident ↗

Washington State AGMay 27 · first

Nebraska State AGMay 27 · first

Maine State AGMay 27 · first

Indiana State AGMay 27 · first

Oregon State AGMay 27 · first

California State AGMay 27 · first

Iowa State AGMay 27 · first · this page

Texas State AG+1d

Massachusetts State AG+1d

Vermont State AG+1d

South Carolina State AG+1d

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.iowaattorneygeneral.gov/media/cms/5272026_Carnival_Corporation_4826557605487.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 27, 2026
Raw hash: ac9fcbc2d9086500425271094e0a4bf4cc7e02db131288941f2ee6d5817fd9ab

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityCarnival Corporation Ltd.

Victim entityCarnival Corporation Ltd.

Incidentdiscovered Apr 14, 2026

Stated responseInitiated its incident response processes to swiftly block the unauthorized activity

ComplianceIA AG ≤5 bday

Extraction provenanceno artifact recorded

Source provenancewww.iowaattorneygeneral.gov