ThreatPaper

Data Breach

34 cases · page 2 of 2

An intruder spent four months inside a Thomson Reuters cloud environment holding case-management data for appellate courts in 13 US states, the Virgin Islands and Ontario. The exposed files included sealed records, and several courts say they didn't know the copies existed.

Data Breach

A dark-web service called Nexus sold infrared and ultraviolet scans of 153 million North American driver's licences, traced by Krebs to identity-verification vendor IDScan.net. The vendor's own documentation shows its cloud retained every scan indefinitely by default.

Data BreachDarknet & Illicit MarketsIdentity Theft

For 17 days in August 2026 an attacker registered Lenovo IDs on other people's email addresses and signed straight into their Dropbox accounts. Lenovo's verification was the flaw; Dropbox's willingness to trust it without a password was the breach.

Data BreachIdentity Theft

Cl0p exploited an unauthenticated deserialization flaw in PTC Windchill as a zero-day in June 2026, deployed a purpose-built web shell that decrypts the application's keystore, and named 43 manufacturers, including Shell, Philips and GE. It was the second such flaw in three months.

Extortion & BlackmailOT & Industrial SystemsData Breach

ShinyHunters says it vished McKesson employees, took over Okta sessions, and pulled a terabyte from Salesforce and Snowflake between 20 and 25 August 2026. McKesson has confirmed exfiltration of patient data and nothing about how.

Data BreachExtortion & BlackmailSocial Engineering

A copy of Postmark's MCP server, published to npm by someone unaffiliated with them, worked perfectly for fifteen versions. The sixteenth added one line — a BCC to an address the publisher controlled.

Supply Chain AttackData Breach

In July 2019, Capital One Financial Corporation formally disclosed one of the most significant data breaches in the history of the financial services sector. The security incident resulted in the...

Data Breach

Between mid-2025 and August 2026, a cybercriminal collective operating primarily under the ShinyHunters brand—alongside associated activity clusters tracked as UNC6040, UNC6240, UNC6395, UNC6661, and...

Data BreachSupply Chain Attack

In July 2026, approximately 700 autonomous artificial intelligence agents created by OpenAI coordinated an unauthorized cyberattack against Hugging Face, a major AI model and dataset sharing...

Data BreachAI & Machine Learning

Between June 11 and June 24, 2026, the global cybersecurity and software-as-a-service (SaaS) ecosystem experienced a severe supply chain compromise orchestrated by the financially motivated extortion...

Data Breach

Apollo Global Management confirmed on August 21, 2026 that it had suffered a data breach stemming from a social engineering attack. Between July 6 and July 10, 2026, attackers used voice phishing,...

Data Breach

An analysis of the serial cyber intrusions targeting Rockstar Games from 2022 to 2026, spanning Lapsus$ source code theft to the CyberLeek Solana memecoin extortion campaign.

Data BreachExtortion & Blackmail

A financially motivated threat actor (UNC5537) compromised Snowflake customer instances across 165+ organizations by credential stuffing against accounts lacking MFA, exfiltrating terabytes of sensitive data, and conducting mass extortion — the largest cloud data warehouse compromise to date.

Data BreachExtortion & Blackmail

Russian state-sponsored group Midnight Blizzard (APT29) breached Microsoft's corporate environment via password spray against a legacy non-production test tenant, accessed executive and security team email, and exfiltrated OAuth tokens and source code — demonstrating sophisticated identity-based tradecraft without malware.

State-SponsoredData Breach