Last updated: September 29, 2026 at 8:42 AM UTC
All 891 Vulnerability 357 Breach 144 Threat 383 Defense 7
Tag: data-breach (47 articles)Clear

HIBP confirms 248,000 accounts from ShinyHunters breach of advisory firm CFGI

Have I Been Pwned has added 248,235 accounts from the March breach of CFGI, a US accounting and financial-advisory firm that works closely with corporate finance teams at mid-market and Fortune 500 companies. The extortion group ShinyHunters claimed the intrusion, posting hundreds of thousands of records including names, emails, phone numbers, and home addresses, along with internal corporate documents and identity-system metadata. Because CFGI sits inside its clients' finance functions, the stolen contact and relationship data is unusually useful for convincing business email compromise and client-impersonation scams aimed at authorizing fraudulent payments.

Check
If you work with or for CFGI, check Have I Been Pwned for your email and watch for finance-themed phishing, fake wire instructions, or audit-document requests referencing CFGI.
Affected
CFGI employees, clients, and contacts whose personal and corporate data was exposed (248,235 accounts confirmed); the firm's finance-function clients face elevated business email compromise risk.
Fix
Reset and stop reusing CFGI-related credentials, enable phishing-resistant MFA, and verify any unexpected payment, wire, or account-change request through a known, pre-established voice channel rather than email links.

Cardiac monitoring firm iRhythm says patient health data stolen in attack

iRhythm, the US digital-health company behind the Zio wearable heart monitor, has told regulators that attackers stole patient data in a breach it considers material. In an SEC filing, the company said it detected unauthorized activity on June 8 in third-party-hosted business applications, accessed through a social-engineering attack, and received an extortion demand the next day from a threat actor claiming to hold proprietary data, protected health information, and other personal data. iRhythm says its clinical systems, medical devices, patient safety, and operations were not affected, with no payment-card or financial data involved. No ransomware group has publicly claimed the attack, and the number of affected people is not yet known.

Check
Healthcare and other organizations should review how third-party-hosted business applications are secured and monitored, and confirm that help desks and staff can resist social-engineering attempts to grant access.
Affected
iRhythm patients and others whose protected health information and personal data sat in the affected third-party business applications; clinical systems, devices, and financial data were reportedly not involved.
Fix
Enforce phishing-resistant MFA and strong identity verification on third-party SaaS, limit and log access to systems holding health data, and rehearse social-engineering scenarios with staff and help-desk teams.

ShinyHunters breach of Berkadia exposes 305,000 in real estate finance

Breach-tracking service Have I Been Pwned has confirmed that 305,216 accounts were exposed in the March attack on Berkadia, a large US commercial real estate finance firm that handles mortgage banking and investment sales. The extortion group ShinyHunters claimed the intrusion, saying it stole millions of Salesforce records containing personal and internal corporate data, around 27GB compressed, and threatened to leak them after the company did not meet its deadline. The breach is part of a broad ShinyHunters campaign this year against companies' Salesforce environments, typically entered by socially engineering employees or help desks rather than exploiting a software flaw.

Check
If you work with or for Berkadia, check whether your email appears in Have I Been Pwned and watch for targeted phishing referencing mortgage, loan, or real estate dealings.
Affected
Berkadia clients, partners, and staff whose personal and business data sat in the breached Salesforce records (305,216 accounts confirmed); the broader ShinyHunters campaign targets corporate Salesforce tenants.
Fix
Reset and stop reusing any passwords tied to Berkadia dealings and enable phishing-resistant MFA. Organizations should lock down Salesforce access, restrict bulk exports, and harden help-desk identity verification.

K-12 platform Infinite Campus breach confirmed, 137,000 student-linked accounts

Have I Been Pwned has confirmed 137,123 accounts exposed in a breach of Infinite Campus, a widely used K-12 student information system in the US. The extortion group ShinyHunters claimed the attack back in March, posting that it had stolen personal data and internal corporate information. Because student information systems hold sensitive records on minors and their families, exposed data raises the risk of identity theft and highly targeted phishing aimed at parents, students, and school staff. The incident fits the same ShinyHunters data-theft pattern seen across the education sector this year, including the much larger Canvas breach.

Check
School districts using Infinite Campus should confirm whether their tenant was affected and notify families; individuals should watch for phishing or fraud referencing schools, student accounts, or enrollment.
Affected
Students, parents, and school staff whose data is held in affected Infinite Campus deployments (137,123 accounts confirmed); minors' records carry long-term identity-theft risk.
Fix
Reset exposed credentials, enable MFA on school and family accounts, and brief parents and staff to verify any school-related message before clicking. Districts should review SaaS access controls and export limits.

Novo Nordisk says clinical trial patient data stolen in breach

Novo Nordisk, the pharmaceutical giant behind Wegovy and Ozempic, has disclosed that attackers copied data from its internal IT systems, including information on patients in some of its clinical trials. The company stressed the patient data was de-identified, containing fields like patient ID, year of birth, sex, biomarkers, and lifestyle factors rather than names or direct identifiers. Novo has not said how many people are affected or named the attacker, and is not offering credit monitoring, instead advising patients and healthcare professionals to stay alert for unexpected messages or calls. Pharma firms are increasingly targeted for their valuable research and patient data.

Check
Patients in Novo Nordisk trials and contacted healthcare professionals should watch for unexpected calls or messages referencing the company or a trial, and verify any such contact through official channels.
Affected
Patients in some Novo Nordisk clinical trials whose de-identified data (patient ID, year of birth, sex, biomarkers, lifestyle factors) was copied, plus healthcare professionals the company has contacted.
Fix
There is no direct user fix; stay alert for targeted phishing referencing the breach. Pharma and research organizations should tighten access controls, monitoring, and segmentation around trial and research data stores.

French government messenger Tchap breached, hitting 73,000 public servants

France's government messaging platform Tchap, the in-house, Matrix-based app that civil servants are required to use instead of WhatsApp or Signal, was breached after a threat actor hijacked a single user account, no software exploit needed. The cyber agency ANSSI detected it on June 7. Officials say data tied to about 73,000 accounts, roughly 9 percent of users, was exposed: the attacker scraped everything shared in public chat rooms, which are not encrypted, while private end-to-end conversations stayed protected. The haul includes over 13.5GB of documents and media plus hardcoded LDAP credentials leaked in a PowerShell script. Entry was via the education ministry's server.

Check
Review what your organization shares in unencrypted public or group chat channels, and scan scripts and config files for hardcoded credentials like the LDAP secret exposed in this breach.
Affected
Around 73,000 French public-sector Tchap accounts; data posted in unencrypted public chat rooms was exposed, while end-to-end-encrypted private conversations were not. The entry point was one hijacked account.
Fix
Enforce phishing-resistant MFA so single accounts cannot be hijacked, remove hardcoded credentials from scripts, treat public chat rooms as non-confidential, and monitor for bulk data access across collaboration platforms.

Japanese utility Kyushu Electric loses drive holding 10.9 million customer records

Kyushu Electric Power, one of Japan's largest utilities, has disclosed a physical security incident: a storage drive containing the personal data of more than 10.9 million customers went missing. Because the exposure stems from lost media rather than a network intrusion, the risk depends largely on whether the drive was encrypted, a detail that determines if the data is readable by whoever finds it. The incident is a reminder that data-governance failures, like unencrypted or poorly tracked portable storage, can expose as many records as a sophisticated hack. Affected customers should watch for fraud and phishing attempts referencing their utility account.

Check
Kyushu Electric customers should watch statements and inboxes for fraud or phishing referencing their utility account; organizations should audit how portable drives holding personal data are encrypted and tracked.
Affected
More than 10.9 million Kyushu Electric Power customers whose personal data was stored on the missing drive; exposure severity depends on whether that storage was encrypted.
Fix
Encrypt all portable and removable media holding personal data, maintain strict chain-of-custody and inventory for such drives, and minimize the data placed on movable storage in the first place.

Attackers post fake breach notices to Maine's public disclosure portal

In an unusual misinformation campaign, fraudulent data-breach notices were submitted to Maine's official Attorney General breach portal and published before anyone verified them, forcing named companies to issue denials. One filing falsely claimed a Discord breach affecting more than 10 million people, submitted not by a company representative but by an individual using a personal Gmail address, a placeholder phone number, and impossible dates. Because the portal is public and a listing does not mean a breach is confirmed, the fakes can spread fear, damage reputations, and seed convincing phishing lures. It highlights how trusted disclosure channels can be weaponized.

Check
Monitor state breach-notification portals for filings naming your organization, and verify any breach claim about a vendor or partner through that company's official channels before acting on it.
Affected
Any organization that can be named in a fraudulent filing, and the public and journalists who treat a portal listing as confirmation; the underlying portal trust model is the weakness.
Fix
Establish monitoring and a rapid-denial process for fake filings, brief staff and customers to confirm breach notices via official sources, and press regulators to add basic submitter verification.

ShinyHunters extorts Oracle PeopleSoft customers in widening data-theft spree

The extortion group ShinyHunters is running a wave of data-theft attacks against organizations using Oracle PeopleSoft, the enterprise software that large institutions rely on for HR, payroll, finance, and student records. Both cloud and on-premises instances are affected, and the gang claims data from more than 100 organizations. Attackers typically log in with stolen employee credentials, move through the PeopleSoft environment, and exfiltrate large datasets before demanding a Bitcoin ransom. A confirmed victim is the University of Nottingham, where a breach of an Oracle student-records system exposed 454,635 accounts. Researchers have shared attacker IP addresses and noted the use of MeshCentral remote-access agents.

Check
Review PeopleSoft access logs for logins from unfamiliar IPs or locations, check for MeshCentral or other unexpected remote-access agents, and confirm whether your org received a ShinyHunters extortion demand.
Affected
Organizations running cloud or on-premises Oracle PeopleSoft, particularly those with reused or phishable employee credentials and limited monitoring of administrative access to HR, finance, and student-records modules.
Fix
Enforce phishing-resistant MFA on all PeopleSoft accounts, rotate exposed credentials, block the shared attacker IPs, remove unauthorized remote-access tools, and tighten access controls and logging on instances.

ServiceNow API flaw let attackers query customer instance data

ServiceNow has quietly told affected customers that attackers exploited an unauthenticated flaw in one of its API endpoints to pull data from hosted customer instances. The company applied a fix to hosted instances on June 5 that restricts the endpoint to authenticated users, and confirmed attackers had successfully queried customer instance tables, though it did not say what data was taken. ServiceNow instances routinely hold sensitive material such as IT support tickets, employee records, asset inventories, and internal documentation, and support tickets in particular often contain credentials, API tokens, and secrets shared during troubleshooting. ServiceNow has opened support cases with the customers it believes were impacted.

Check
Check your ServiceNow support portal for a case opened by ServiceNow about this incident, and review instance access and API logs for unexpected unauthenticated queries before June 5.
Affected
Organizations running hosted ServiceNow instances whose data could be reached through the vulnerable unauthenticated API endpoint before the June 5 fix, especially those storing secrets in support tickets.
Fix
Confirm the June 5 fix applied to your instance, rotate any credentials, API tokens, or secrets that appeared in support tickets, and tighten access controls and logging on the instance.