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Breach occurred 2026-06-15VerifiedStealer-log sourcedWhat happened
In June 2026, a collection of accumulated stealer logs from various sources was added to HIBP. The corpus comprised 56M unique email addresses across hundreds of millions of stealer log records. The data also contained 124M unique passwords, which have been added to Pwned Passwords and are now searchable. Individuals can view any records captured against their email address in the stealer logs section of their dashboard. Organisations can see logs affecting their domain via the stealer logs API.
Data exposed
Frequently asked questions
The June 2026 Stealer Logs data breach occurred on June 15, 2026. It was added to Have I Been Pwned's breach catalog on June 15, 2026.
56,278,397 accounts were affected by the June 2026 Stealer Logs data breach, according to Have I Been Pwned's records.
The June 2026 Stealer Logs breach exposed the following data types: Email addresses, Passwords.
Yes. Have I Been Pwned has verified the June 2026 Stealer Logs breach, meaning there's confirmed evidence the exposed data is genuine and tied to real accounts.
Yes. The June 2026 Stealer Logs entry is sourced from an information-stealing malware log rather than a direct company breach disclosure — the credentials were harvested from infected devices, not taken from June 2026 Stealer Logs's own systems.
Use KazaSec's free Email Breach Checker (/tools/breach-check) to check whether a specific email address has surfaced in the June 2026 Stealer Logs breach, or any other known breach — the tool never stores what you search.
Our free Email Breach Checker tells you whether a specific email address has surfaced in this breach — or any other known breach — without ever storing what you search.
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