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Sarah Mitchell

Data Breach Reporter

Covers corporate data breaches, extortion campaigns, and the underground data economy for ProbablyPwned. Sarah has seven years of experience in cybersecurity journalism and incident response consulting. She monitors dark web forums and tracks threat actor monetization strategies, bringing an investigative approach to breach reporting. Sarah previously worked as a security consultant specializing in incident response and digital forensics, and holds a GCIH (GIAC Certified Incident Handler) certification.

data breach investigationincident responsedark web monitoringdigital forensicsbreach notification analysis

Articles by Sarah(88)

North Korea Behind $285M Drift Protocol Heist
Data Breaches3 min read

North Korea Behind $285M Drift Protocol Heist

Solana's Drift Protocol lost $285 million in 2026's largest DeFi hack. TRM Labs attributes the attack to North Korean actors who exploited oracle manipulation and pre-signed transactions.

Sarah MitchellApr 4, 2026
European Commission Confirms AWS Cloud Breach
Data Breaches3 min read

European Commission Confirms AWS Cloud Breach

Hackers compromised the European Commission's Amazon cloud infrastructure, claiming to steal 350GB of data including employee databases. Investigation ongoing.

Sarah MitchellMar 28, 2026
ShinyHunters Extorts Infinite Campus After Salesforce Breach
Data Breaches4 min read

ShinyHunters Extorts Infinite Campus After Salesforce Breach

K-12 student information system provider Infinite Campus discloses breach affecting school staff data. ShinyHunters issued March 25 ransom deadline after claiming to steal Salesforce records.

Sarah MitchellMar 25, 2026
Navia Benefit Solutions Breach Exposes 2.7 Million SSNs
Data Breaches3 min read

Navia Benefit Solutions Breach Exposes 2.7 Million SSNs

Workplace benefits administrator Navia discloses data breach affecting 2.7 million individuals. Social Security numbers, health plan data, and personal information stolen during December-January intrusion.

Sarah MitchellMar 23, 2026
TriZetto Breach Exposes 3.4 Million Healthcare Records
Data Breaches4 min read

TriZetto Breach Exposes 3.4 Million Healthcare Records

Cognizant subsidiary TriZetto Provider Solutions confirms breach affecting 3.4 million patients. SSNs, Medicare IDs, and health data exposed after attackers went undetected for nearly a year.

Sarah MitchellMar 10, 2026
LexisNexis Breach Exposes Government and Law Firm Data
Data Breaches4 min read

LexisNexis Breach Exposes Government and Law Firm Data

FulcrumSec threat actor exploits React2Shell vulnerability to breach LexisNexis AWS infrastructure, leaking 2GB of customer data including .gov email addresses and federal employee records.

Sarah MitchellMar 3, 2026
BreachForums Database Leaked, Exposing 324K Users
Data Breaches3 min read

BreachForums Database Leaked, Exposing 324K Users

A backup misconfiguration led to the exposure of nearly 324,000 user records from the notorious hacking forum, including usernames, hashed passwords, and IP addresses.

Sarah MitchellJan 19, 2026
17.5 Million Instagram Accounts Leaked on BreachForums
Data Breaches4 min read

17.5 Million Instagram Accounts Leaked on BreachForums

A threat actor shared Instagram user data including emails and phone numbers for free. Users report receiving suspicious password reset emails within hours of the leak.

Sarah MitchellJan 10, 2026
Hacker Selling 139GB of US Utility Engineering Data
Data Breaches5 min read

Hacker Selling 139GB of US Utility Engineering Data

Pickett USA breach exposes LiDAR scans, transmission line surveys, and substation layouts for Tampa Electric, Duke Energy Florida, and American Electric Power. Asking price: 6.5 BTC.

Sarah MitchellJan 9, 2026
European Space Agency Confirms Data Breach
Data Breaches5 min read

European Space Agency Confirms Data Breach

Threat actor '888' claims 200GB of source code, API keys, and credentials from ESA's Bitbucket and JIRA servers. Agency says only unclassified scientific systems were affected.

Sarah MitchellJan 1, 2026