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Glossary

Credential Stuffing

An automated attack that tries username and password pairs leaked from one breach against other websites, exploiting the fact that many people reuse passwords across services. It is highly effective at scale and is a primary reason security guidance discourages password reuse and recommends MFA.

Recent coverage mentioning Credential Stuffing

MEDIUM
Data Breach

IDScan Sued Over Alleged Breach Impacting 153 Million Drivers

IDScan faces lawsuits after a dark-web service allegedly offered to sell 153 million driver's licenses and millions of other identity documents.

Runtime Rebel Intel
3 min read · Sep 4, 2026
HIGH
Data Breach

French Hospital Fined €500K for GDPR Data Breach

France's CNIL fined Hôpital privé de la Loire €500,000 after a data breach exposed sensitive medical data of 727,000 patients.

Runtime Rebel Intel
4 min read · Sep 4, 2026
MEDIUM
Threat Intel

Entra Log Analysis: Detecting Password Spray Attacks with PowerShell

Learn to analyze Microsoft Entra sign-in logs using PowerShell to detect password spray attacks and anomalous successful logins from unexpected geographic locations.

Runtime Rebel Intel
4 min read · Aug 21, 2026
HIGH
Data Breach

Sakura Internet Breach Exposes 1.36 Million Accounts

Japanese cloud provider Sakura Internet discloses a data breach exposing customer contract and membership data for up to 1.36 million accounts.

Runtime Rebel Intel
5 min read · Aug 20, 2026
HIGH
Threat Intel

US Charges Iranian Hackers in $3.4B Intellectual Property Theft

US charges 17 Iranian hackers from Mabna Institute for a state-sponsored campaign stealing 31.5 TB of academic and corporate intellectual property since 2013.

Runtime Rebel Intel
5 min read · Aug 19, 2026
Mitigating Large-Scale Credential Attacks and Password Spraying
HIGH
Threat Intel

Mitigating Large-Scale Credential Attacks and Password Spraying

Analysis of large-scale password spraying and credential theft campaigns targeting enterprise identity perimeters, edge devices, and cloud tenants.

Runtime Rebel Intel
2 min read · Aug 19, 2026

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