CriticalBreachHave I Been Pwned — public breach catalog· 29 Aug 2017

Onliner Spambot — 711.5M accounts

Severity: Critical · Kind: Data breach

Plain-English summary on the way

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From the source

In August 2017, a spambot by the name of Onliner Spambot was identified by security researcher Benkow moʞuƎq . The malicious software contained a server-based component located on an IP address in the Netherlands which exposed a large number of files containing personal information. In total, there were 711 million unique email addresses, many of which were also accompanied by corresponding passwords. A full write-up on what data was found is in the blog post titled Inside the Massive 711 Million Record Onliner Spambot Dump .

Breach facts

Accounts affected
711,477,622
Verified
Yes
Sensitive
No
Data exposed
Email addressesPasswords

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Plain-English summaries are AI-generated and reviewed for tone, not technical accuracy. For incident response, always rely on the original source linked above.