All news with #data leak tag

Serious Cyber Incidents Hit Multiple London Councils

⚠️ Multiple London local authorities, including the Royal Borough of Kensington and Chelsea (RBKC) and Westminster City Council, are responding to a serious cybersecurity incident identified on Monday. Both councils have informed the ICO and are working with the NCSC while invoking business continuity and emergency plans to protect critical services. A number of systems, including phone lines and shared IT services, are affected across boroughs. RBKC reports successful mitigations are in place and recovery work is continuing.

Ransomware Alliances Drive Large October Attack Surge

🔴 A seasonal surge and new alliances between ransomware groups drove a 41% month-on-month jump in attacks from September to October, NCC Group reports. Qilin was the most active actor, blamed for 170 of 594 incidents (29%), followed by Sinobi and Akira. The rise coincides with LockBit 5.0 realigning with DragonForce and Qilin, and the emergence of newcomers such as The Gentlemen. Organisations are urged to reinforce monitoring, staff awareness, and secure backups ahead of the peak threat season.

OnSolve CodeRED Cyberattack Disrupts U.S. Alert Systems

🚨 Crisis24 confirmed its CodeRED emergency-notification platform was breached, disrupting alerts for state and local governments, police, and fire agencies nationwide. The company decommissioned the legacy environment and is rebuilding from a March 31, 2025 backup, so recent accounts may be missing. Crisis24 says the incident was contained to CodeRED, but names, addresses, emails, phone numbers and passwords were stolen; no public posting has been confirmed.

Developers Exposed Large Cache of Credentials Online

🔒 Security researchers at watchTowr discovered that two popular code utility sites — JSON Formatter and Code Beautify — inadvertently exposed thousands of developer submissions containing sensitive secrets and credentials. By querying a public API and the sites’ “Recent Links” listings, the team extracted over 80,000 submissions spanning years, including API keys, private keys, database and cloud credentials, JWTs, and PII. The exposure remained until the sites disabled the save feature; watchTowr also confirmed active scraping by third parties and reported limited response from affected organizations.

AWS Network Firewall Proxy Now Available in Preview

🔒 AWS has launched Network Firewall Proxy in public preview, providing centralized controls to block data exfiltration and malware injection across application traffic. In explicit proxy mode you can set up filters in just a few clicks to control outbound requests and the responses your applications receive, protect against domain or SNI spoofing, and restrict access to trusted domains or IPs. The service supports TLS inspection and granular HTTP header filtering, and emits detailed logs to Amazon S3 and AWS CloudWatch. Preview access is free in US East (Ohio).

Years of JSONFormatter and CodeBeautify Credentials Leak

🔒 New research from watchTowr Labs found over 80,000 files saved to online code-formatting tools, exposing thousands of passwords, API keys, repository tokens and other sensitive credentials across government, telecoms, finance, healthcare and critical infrastructure. The datasets comprise five years of JSONFormatter content and one year of CodeBeautify content (about 5GB), and both services used predictable, shareable URLs and a Recent Links page that made mass crawling trivial. Researchers uploaded decoy AWS keys that were abused within 48 hours, and both sites have temporarily disabled save functionality while implementing enhanced content-prevention measures.

Holiday Cyberthreat Surge 2025: What CISOs Must Know

🛡️ FortiGuard Labs' 2025 holiday analysis documents a marked increase in malicious infrastructure, credential theft, and targeted exploitation of e-commerce systems during the pre-holiday period. Attackers registered tens of thousands of holiday- and retail-themed domains and sold over 1.57 million account records from stealer logs, fueling credential stuffing and account takeover. The report highlights active exploitation of critical flaws in platforms such as Magento, Oracle EBS, and WooCommerce, and emphasizes urgent mitigations: patching, MFA, bot management, domain monitoring, and payment-page integrity checks to reduce fraud and protect customers.

Code-formatters leak credentials from major organizations

🔓 Researchers discovered that the code-formatting services JSONFormatter and CodeBeautify exposed more than 80,000 user-saved JSON pastes totaling over 5GB via an unprotected Recent Links feature. The listings and predictable URLs allowed simple crawlers to enumerate and retrieve sensitive data including credentials, API keys, private keys, and PII. The findings show active scraping and confirmed access attempts after uploads expired.

Code formatters left 80,000+ secrets exposed publicly

🔓 Researchers at external attack surface management firm watchTowr discovered more than 80,000 JSON snippets saved via JSONFormatter and CodeBeautify's unprotected Recent Links feature, exposing credentials, private keys, tokens, and configuration files. The platforms generated predictable, shareable URLs when users saved snippets and stored them without access controls, allowing anyone to scrape content via the services' APIs. Leaked material spans government, finance, healthcare, telecoms, and other sensitive sectors. watchTowr's Canarytoken test showed attackers accessed planted fake AWS keys after links had expired, indicating active scanning.

ToddyCat Tools Target Outlook, Steal M365 Tokens Now

🛡️ Kaspersky researchers report that the ToddyCat APT has evolved tactics to harvest corporate email and Microsoft 365 access tokens. Operators deployed a C++ utility, TCSectorCopy, to copy Outlook OST files sector-by-sector and then extract messages with XstReader. They also used SharpTokenFinder to enumerate and steal JWTs and, when blocked, relied on ProcDump to obtain Outlook memory dumps. PowerShell variants of TomBerBil were observed stealing browser cookies, credentials and DPAPI keys across network shares.

Dartmouth Confirms Data Breach After Clop Extortion

🔒 Dartmouth College says threat actors linked to the Clop extortion gang exploited a zero-day in Oracle E-Business Suite to steal files and leak them on a dark web site. The college reported unauthorized access between August 9 and August 12, 2025, and on October 30 identified files containing names and Social Security numbers. A filing with Maine's Attorney General lists 1,494 individuals whose data was found in reviewed files and notes that financial account information was also taken. Dartmouth has not provided details on any ransom demand or the full scope of impacted people.

SitusAMC Data Breach Exposes Client and Customer Data

🔒 SitusAMC, a major real-estate finance services firm that supports banks and lenders, disclosed a November data breach that compromised some client and customer information. The company says business operations remain unaffected and investigators found no evidence of encrypting ransomware. External experts have been retained, and affected clients and residential customers are being notified directly as the scope is determined.

Shai-Hulud Malware Hits Hundreds of npm Packages, Leaks Secrets

⚠️ Hundreds of trojanized versions of popular npm packages — including toolkits linked to Zapier, ENS Domains, PostHog and others — have been published in a renewed Shai‑Hulud supply‑chain campaign designed to steal developer and CI/CD secrets. The malware runs during pre‑install, collects credentials into files like cloud.json and environment.json, and posts encoded data to quickly created GitHub repositories. Researchers at Aikido Security, Wiz and Step Security identified obfuscated payloads in setup_bun.js and a large, heavily obfuscated bun_environment.js dropper.

Harvard Alumni Systems Breached in Voice Phishing Attack

📞Harvard University disclosed that systems used by Alumni Affairs and Development were accessed in a phone‑based phishing attack discovered on November 18, 2025. Exposed information includes email addresses, phone numbers, home and business addresses, event attendance records, donation details, and biographical data for alumni, donors, some students, faculty and staff. The university stated the compromised systems did not contain Social Security numbers, passwords, payment card data, or financial account information. Harvard sent notifications on November 22 and is working with law enforcement and third‑party cybersecurity experts to investigate and remediate the incident.

Major US Banks Assess Impact of SitusAMC Data Breach

🔒 Major US banks including JPMorgan Chase, Citi and Morgan Stanley are assessing potential customer data exposure after third-party mortgage servicer SitusAMC disclosed a breach discovered on Nov. 12 and confirmed on Nov. 22. SitusAMC says corporate records and 'certain data' related to clients' customers may have been accessed; the company reports services remain operational and the incident is contained. The FBI is investigating, has found no operational impact to banking services so far, and the company has implemented credential resets, disabled remote access tools, updated firewall rules and engaged third-party advisors while forensic analysis continues.

Fortinet, Chrome 0-days and Supply-Chain Attacks Recap

⚠️ This week’s recap spotlights multiple actively exploited vulnerabilities, supply‑chain compromises, and a record cloud DDoS that forced rapid vendor responses. Fortinet disclosed a FortiWeb OS command injection (CVE-2025-58034) that was observed chained with a recent critical fix, raising concerns about silent patching and disclosure timing. Google patched an actively exploited Chrome V8 0‑day (CVE-2025-13223), and attackers continued to abuse browser notifications, malicious updates, and SaaS integrations to phish and persist. The incidents underscore urgent priorities: patch quickly, scrutinize integrations, and strengthen monitoring and response.

Iberia Alerts Customers After Supplier-Related Data Breach

⚠️ Iberia has notified customers that personal data was exposed after unauthorized access to a supplier's systems, potentially including names, email addresses and Iberia Club loyalty numbers. The carrier says no login credentials or payment card details were taken and that it has implemented additional verification checks and mitigation measures. Customers are urged to watch for phishing and suspicious communications. The airline is investigating and has informed authorities.

Operation Endgame 3.0 Disrupts Rhadamanthys Infostealer

🔒Operation Endgame 3.0, coordinated by Europol with over 30 national and private partners, dismantled more than 1,000 servers and seized 20 domains tied to the Rhadamanthys infostealer, VenomRAT and the Elysium botnet. Authorities say the disrupted infrastructure harboured hundreds of thousands of infected computers and millions of stolen credentials, with the Rhadamanthys operator allegedly accessing over 100,000 crypto wallets. The action included 11 searches and at least one arrest; users are advised to check accounts via national breach-check services or HaveIBeenPwned and to maintain strong defences as criminals can rebuild.

Iberia Notifies Customers of Vendor-Related Data Leak

🔔 Iberia has informed customers of a security incident after unauthorized access to a supplier's systems exposed limited customer information. The airline says affected fields may include full name, email address, and Iberia Club loyalty identification numbers, while login credentials and payment card data were not accessed. Iberia says it activated its security protocol, added verification codes for email changes, is monitoring systems, and has notified authorities as it works with the third-party vendor. Customers are urged to watch for suspicious messages and report anomalies to the airline.

WhatsApp API Flaw Enabled Scraping of 3.5B Accounts

🔍 Researchers from the University of Vienna and SBA Research compiled a list of 3.5 billion active WhatsApp mobile numbers and associated personal details by abusing a contact-discovery API that lacked rate limiting. Running from a single server with five authenticated sessions, they queried more than 100 million numbers per hour and tested a generated space of 63 billion potential numbers. The team responsibly reported the issue and WhatsApp has since added rate-limiting protections. Although the researchers did not publish the dataset, their findings illustrate how unprotected APIs enable large-scale scraping and privacy exposure.