Breach Advisories
In-depth analysis of significant data breaches and cyber incidents. Understand what happened, who was affected, and what your organisation can learn from each event.
Disclaimer
These advisories summarise publicly reported cybersecurity incidents for educational purposes. All information is sourced from publicly available reports and may include claims that are unverified or disputed. See individual advisories for full source citations and disclaimers.
Showing 58 of 58 advisories
IDMerit
Identity Verification / Fintech - Global - February 2026
Analysis of the IDMerit KYC data exposure affecting approximately 1 billion identity verification records across 26 countries due to a misconfigured MongoDB database.
Under Armour
Retail / Consumer - United States - January 2026
Analysis of the Under Armour data breach with 72 million customer records allegedly leaked by the Everest ransomware group after a failed extortion attempt.
Conduent Business Solutions
Government IT Services / Healthcare - United States - February 2026
Analysis of the Conduent ransomware breach affecting over 25 million individuals including government benefits recipients. SafePay group claimed to have exfiltrated 8TB of data.
Instagram / Meta Platforms
Social Media - Global - January 2026
Analysis of the alleged Instagram data leak of 17.5 million accounts. Meta denies the breach occurred and the claims remain unverified.
CarGurus
Automotive / E-commerce - United States - February 2026
Analysis of the CarGurus data breach reportedly exposing 12.4 million user records including hashed passwords.
Match Group (Hinge, Match, OkCupid)
Dating / Social Media - Global - January 2026
Analysis of the alleged Match Group breach reportedly exposing 10 million records from Hinge, Match.com, and OkCupid via claimed compromise of marketing analytics partner.
Odido
Telecommunications - Netherlands - March 2026
Analysis of the Odido data breach affecting over 6 million individuals in the Netherlands. Social engineering attack bypassed MFA and exposed customer data including IBANs and identity document metadata.
Panera Bread
Food Service / Retail - United States - February 2026
Analysis of the Panera Bread data breach with 5.1 million customer accounts leaked by ShinyHunters after failed extortion attempt.
TriZetto Provider Solutions
Healthcare IT / Revenue Management - United States - March 2026
Analysis of the TriZetto Provider Solutions data breach affecting over 3.4 million patients. An 11-month unauthorised access to healthcare claims processing systems exposed SSNs and health data.
Crunchbase
Technology / Business Intelligence - United States - January 2026
Analysis of the Crunchbase data breach exposing 2 million records including internal documents and contracts.
MexiTravels (reservations.mexitravels.com)
Travel / Hospitality - Mexico - March 2026
Analysis of the MexiTravels data leak exposing approximately 1.98 million travel reservation records. SQL database dump published on dark web forums.
Den kulturelle skolesekken (DKS)
Education / Government / Arts - Norway - March 2026
Analysis of the Den kulturelle skolesekken (DKS) data breach in Norway exposing approximately 1.3 million records from the national cultural education programme.
University of Hawai'i Cancer Center
Healthcare / Academic Research - United States - March 2026
Analysis of the University of Hawai'i Cancer Center ransomware attack affecting up to 1.24 million individuals. Legacy research data from the 1990s exposed including SSNs.
FICOBA (French National Bank Account Registry)
Financial Services / Government - France - February 2026
Analysis of the FICOBA breach exposing 1.2 million French bank account records from the national registry.
Brightspeed
Telecommunications - United States - January 2026
Analysis of the Brightspeed data breach affecting over 1 million customers with partial payment card information exposed.
Figure Technology Solutions
Fintech / Blockchain - United States - February 2026
Analysis of the Figure Technology breach affecting 967,000 users via social engineering by the ShinyHunters group.
Adidas Licensing Partner
Retail / Apparel - Global - February 2026
Analysis of the Adidas licensing partner breach exposing 815,000 rows of data including plaintext passwords.
CIRO (Canadian Investment Regulatory Organization)
Financial Services / Regulatory - Canada - January 2026
Analysis of the CIRO breach affecting 750,000 people at Canada's investment regulatory organisation via phishing attack.
Illinois Department of Human Services
Government / Social Services - United States - January 2026
Analysis of the Illinois DHS data exposure affecting 705,017 individuals due to a system misconfiguration exposing public assistance data.
Roku
Technology / Entertainment - United States - March 2026
Analysis of Roku's second data breach in two years affecting 576,000 customer accounts.
youX
Fintech - Australia - February 2026
Analysis of the youX breach exposing 444,538 Australian borrowers' government IDs and driver's licences.
Minnesota Department of Human Services
Government / Social Services - United States - January 2026
Analysis of the Minnesota DHS insider threat incident affecting 303,965 individuals' personal and protected information.
Clinic Service Corporation
Healthcare - United States - January 2026
Analysis of the Clinic Service Corporation breach affecting 82,331 individuals' health data.
LifeLong Medical Care
Healthcare - United States - January 2026
Analysis of the LifeLong Medical Care breach affecting 70,000 individuals via hacking at a business associate.
Bryan Texas Utilities
Utilities - United States - February 2026
Analysis of the Bryan Texas Utilities ransomware attack disrupting billing services for 70,000 customers.
Avosina Healthcare Solutions
Healthcare - United States - January 2026
Analysis of the Avosina Healthcare ransomware attack by Qilin group affecting 44,425 individuals.
PayPal
Fintech / Payments - United States - February 2026
Analysis of the PayPal credential-stuffing attack affecting 34,942 users with SSN exposure over a 5-month period.
Vida Y Salud-Health Systems
Healthcare - United States - January 2026
Analysis of the Vida Y Salud breach affecting 34,504 individuals with SSNs and medical data exposed.
Wakefield & Associates
Financial Services - United States - January 2026
Analysis of the Wakefield & Associates ransomware attack by Akira group affecting 31,751 individuals.
Jefferson-Blount-St. Clair Mental Health Authority
Healthcare / Mental Health - United States - January 2026
Analysis of the Jefferson-Blount Mental Health Authority ransomware attack by Medusa group affecting 30,434 individuals.
Japan Airlines
Aviation / Travel - Japan - February 2026
Analysis of the Japan Airlines breach affecting 28,000 customers via unauthorised access to luggage delivery reservation system.
Mid Michigan Medical Billing Service
Healthcare - United States - January 2026
Analysis of the Mid Michigan Medical Billing ransomware attack by Qilin group affecting 28,185 individuals.
RTL Group
Media / Entertainment - Luxembourg - February 2026
Analysis of the RTL Group breach exposing 27,000 employees' contact and job details.
Volvo Group North America
Automotive / Manufacturing - United States - February 2026
Analysis of the Volvo Group breach affecting 17,000 employees via the Conduent/SafePay ransomware supply chain attack.
Pecan Tree Dental
Healthcare / Dental - United States - January 2026
Analysis of the Pecan Tree Dental ransomware attack by Sinobi group affecting 13,300 individuals.
Central Ozarks Medical Center
Healthcare - United States - January 2026
Analysis of the Central Ozarks Medical Center breach affecting 11,818 individuals' health data.
360 Dental PC
Healthcare / Dental - United States - January 2026
Analysis of the 360 Dental PC ransomware attack affecting 11,273 individuals.
US Immigration and Customs Enforcement / Customs and Border Protection
Government / Law Enforcement - United States - January 2026
Analysis of the ICE and Border Patrol insider leak exposing 4,500 law enforcement workers' details.
Microsoft
Technology - Global - February 2026
Analysis of the Microsoft Outlook add-in credential theft affecting 4,000 user accounts.
Coinbase
Fintech / Cryptocurrency - Global - February 2026
Analysis of the Coinbase insider threat exposing 30 individuals' KYC data and crypto wallet balances.
Nike
Retail / Apparel - United States - January 2026
Analysis of the Nike data breach with 1.4TB of internal design and manufacturing data claimed stolen by WorldLeaks.
LexisNexis
Legal / Information Services - United States - March 2026
Analysis of the LexisNexis cloud breach exposing 2GB of legal and government client data.
Wynn Resorts
Hospitality / Gaming - United States - February 2026
Analysis of the Wynn Resorts ransomware attack exposing customer and corporate data.
Substack
Media / Technology - United States - February 2026
Analysis of the Substack breach exposing subscriber email addresses and phone numbers.
Flickr
Technology / Social Media - Global - February 2026
Analysis of the Flickr data exposure via third-party breach including user IP addresses and locations.
Eurail
Travel / Transportation - Europe - January 2026
Analysis of the Eurail breach with passport and customer data allegedly offered for sale on the dark web.
European Commission
Government / International - European Union - February 2026
Analysis of the European Commission staff data exposure via exploited Ivanti Endpoint Manager Mobile vulnerability.
Directorate of File Automation (DAF), Senegal
Government - Senegal - February 2026
Analysis of the claimed Senegal government biometric database breach by Green Blood Group with 139TB of identity data.
Terry Reilly Health Services
Healthcare - United States - February 2026
Analysis of the Terry Reilly Health Services breach via TriZetto supply chain cascade exposing SSNs and health data.
San Diego Eye Bank
Healthcare - United States - February 2026
Analysis of the San Diego Eye Bank ransomware attack exposing patient and donor data.
Dutch Data Protection Authority (Autoriteit Persoonsgegevens)
Government / Regulatory - Netherlands - February 2026
Analysis of the Dutch Data Protection Authority breach via Ivanti vulnerability - the data privacy regulator itself compromised.
Iron Mountain
Information Management - United States - February 2026
Analysis of the Iron Mountain extortion attempt claiming 1.4TB of data from the records management company.
Ledger / Global-e
Fintech / Cryptocurrency - Global - January 2026
Analysis of the Ledger/Global-e breach exposing crypto wallet customer data including physical addresses and order details.
Stryker Corporation
Healthcare / Medical Devices - United States - March 2026
Analysis of the Handala group’s destructive wiper attack on Stryker Corporation, which reportedly wiped up to 200,000 devices across 79 countries using the company’s own Microsoft Intune platform.
TELUS Digital
Business Process Outsourcing / Technology Services - Canada - March 2026
Analysis of the TELUS Digital breach where ShinyHunters allegedly stole close to 1 petabyte of data, reportedly including BPO customer data for 28 companies, using credentials from the Salesloft Drift breach.
Infutor
Data Brokerage / Identity Verification - United States - March 2026
Analysis of the Infutor data exposure affecting approximately 677 million records of US consumer data, including Social Security Numbers, reportedly caused by a misconfigured Elasticsearch database.
Loblaw Companies
Retail / Grocery - Canada - March 2026
Analysis of the Loblaw Companies data breach where hackers accessed customer contact information from Canada’s largest food and pharmacy retailer, which operates 2,400+ stores.
AkzoNobel
Manufacturing / Chemicals - Netherlands - March 2026
Analysis of the Anubis ransomware attack on AkzoNobel where the group claims to have stolen 170GB of data including passport scans and confidential agreements from the global paints and coatings manufacturer.