Carnival Cruise Lines Data Breach Exposes Personal Information of Nearly 6 Million Passengers
Carnival Cruise Lines reported that nearly 6 million passengers had their personal information exposed after a data breach. The breach was discovered in mid-April 2026, following an employee falling victim to a social engineering attack that granted hackers access to the IT system. Although Carnival acted quickly, a significant amount of customer information was stolen, including names, addresses, contact information, birth dates, and government ID numbers. Affected passengers are being notified and offered free credit monitoring.
Signal context
First seen: Jun 5, 2026
Last updated: Jun 29, 2026
Status: Public signal
Key points
- Nearly 6 million Carnival Cruise Lines passengers affected.
- Breach discovered in mid-April 2026.
- Caused by an employee falling victim to a social engineering attack.
Signal analysis
BetaThis analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.
Sector: Retail Trade
Likely country: Location not provided
The feed marks multiple actor roles. Treat this as a review signal rather than a final attribution.
- Source type: outside the affected organization
- Source type: possible insider or internal misuse
Impact area: Confidentiality
Likely asset: User or customer data
- 1 signal in the same sector
- 90 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
This Week's Cybersecurity News: June 5th, 2026 - Applied Techhttps://appliedtech.com/news/cybersecurity-news-june-5-2026Public source from appliedtech.com.
Charter Cyberattack Exposes 4.9 Million Accounts as Employee Credential Attacks Hit Major Companies - Captain Compliancehttps://www.captaincompliance.com/education/governance-risk-and-compliance/charter-cyberattack-exposes-4-9-million-accounts-as-employee-credential-attacks-hit-major-companies/Public source from captaincompliance.com.
Related signals
Grouped by why the signal is relevant.
Carnival Cruise Lines Data Breach Exposes Information of Nearly 6 Million Passengers
Carnival Cruise Lines disclosed a data breach affecting nearly 6 million passengers. The breach was discovered in mid-April 2026 after an employee fell victim to a social engineering attack, granting hackers access to the company's IT system. Although Carnival acted quickly, attackers managed to steal significant customer information, including names, addresses, contact information, birth dates, and government ID numbers (such as passport and driver's license numbers). Affected passengers are being notified and offered credit monitoring. While an initial disclosure may have occurred in late May, new details and significant reporting made this a top headline on June 5, 2026.
Healthcare AI Company Xsolis Suffers Data Breach Impacting 1.4 Million Individuals
Healthcare AI company Xsolis disclosed a data breach affecting nearly 1.4 million individuals. The incident stemmed from a targeted phishing attack on January 20, 2026, which gave attackers unauthorized access to files containing sensitive patient information. The compromised data potentially includes names, dates of birth, Social Security numbers, health insurance details, and medical treatment records. Xsolis confirmed the incident has been contained and is notifying affected individuals, offering free credit monitoring.
French government messaging platform Tchap breached via compromised user account
DINUM, the French government's digital affairs directorate, warned that hackers breached Tchap, France's encrypted messaging platform for public sector workers, using a compromised user account. The incident was detected by ANSSI, after which the affected account was blocked and an investigation launched into what conversations and data may have been accessed. DINUM has notified France's data protection authority, CNIL, due to the potential exposure of personal data. A threat actor claimed responsibility, alleging they used social engineering to access an education-related account and scrape messages, account information, and files, including 13.5GB of data from the French tax authority and other civil servants.
Malicious 'Edgecution' Extension Exploits Microsoft Edge Native Messaging for Ransomware Deployment
Security researchers reported on June 25, 2026, the discovery of a new malware campaign dubbed 'Edgecution,' which utilizes a malicious Microsoft Edge extension to deploy ransomware and a Python-based backdoor. The extension abuses the Native Messaging API to escape the browser sandbox and establish a persistent system-level executor. Attackers are reportedly using Microsoft Teams for social engineering, directing victims to fake 'Outlook Updates Management Console' websites to trick them into installing the malicious extension. This campaign is believed to be operated by an Initial Access Broker (IAB) linked to the 'Payout Kings' ransomware operation.
NIFTY Corporation Affected by KDDI Corporation Data Breach
NIFTY Corporation, a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. NIFTY Corporation customers' email addresses and passwords may have been compromised.
BIGLOBE Inc. Affected by KDDI Corporation Data Breach
BIGLOBE Inc., a Japanese internet service provider, was impacted by a data breach originating from an email system provided by KDDI Corporation. Threat actors gained unauthorized access to this shared system by exploiting a vulnerability in third-party software. This led to the potential exposure of up to 14.2 million email addresses and passwords across all affected ISPs. BIGLOBE Inc. customers' email addresses and passwords may have been compromised.