This week’s Cyber Intelligence House Leak of the Week concerns a large-scale credential stuffing database, known as the Naz.api breach, which was released in June 2025. The dataset was shared on DarkForums by a threat actor using the handle “Rip_Real_World”.

A total of 319 files were discovered, amounting to 105 GB of stolen data. The leak includes more than 24 million email addresses and was compiled from malware-infected stealer logs and previously compromised credentials. The dataset includes login access for a wide array of platforms, including cloud services, financial institutions, gaming sites, and internal portals, raising widespread security concerns across industries.

Cyber Intelligence House Analysis of Leaked Data

The following highlights the most sensitive aspects of the breach:
– 24,508,580 unique email addresses were exposed as part of a larger credential stuffing database.

Data Types Identified
– Full names
– Email addresses
– Passwords in plaintext
– Phone numbers
– Organization names
– Login portal URLs for platforms including Google, PayPal, Facebook, Roblox, and others

The dataset shows no encryption or obfuscation of credentials and contains real-time access data likely sourced from active stealer malware infections.

Cyber Intelligence House Implications
For Individuals
– Increased risk of account takeover across multiple online platforms due to exposed email/password combinations.
– Greater vulnerability to targeted phishing and fraud leveraging leaked contact details and login context.
– Potential misuse of personal or professional login data for impersonation, – identity theft, or financial crime.

For Organizations
– Threat of internal system breaches if employees reused corporate credentials on exposed services.
– Damage to brand reputation if customer-facing accounts are hijacked and used maliciously.
– Regulatory exposure under data protection laws if leaked credentials match internal records or access systems.

Supply Chain Risks
– If email addresses or credentials were reused across partner, vendor, or customer systems, the breach could facilitate unauthorized access beyond the originally compromised platforms, expanding the threat landscape across the entire supply chain.

Cyber Intelligence House Recommendations
– Monitor for Exposed Credentials: Organizations should integrate the Naz.api dataset into credential monitoring pipelines and alert affected users.
– Enforce Multi-Factor Authentication (MFA): Enabling MFA significantly reduces the risk of successful credential-based attacks.
– Conduct Credential Hygiene Audits: Review password reuse patterns across internal systems, especially where shared access is common.
– Enhance Login Protections: Implement rate limiting, anomaly detection, and re-authentication flows for accounts matching leaked emails.
– User Awareness Campaigns: Warn affected users of phishing risks.