MediumBreachHave I Been Pwned — public breach catalog· 22 Aug 2023

Atmeltomo — 580K accounts

Severity: Medium · Kind: Data breach

Plain-English summary on the way

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From the source

In April 2021, "Japan's largest e-mail friend search site" Atmeltomo suffered a data breach that was later sold on a popular hacking forum . The breach exposed 1.3M records with 580k unique email addresses along with usernames, IP addresses and unsalted MD5 password hashes.

Breach facts

Accounts affected: 580,177
Verified: Yes
Sensitive: No
Domain: atmeltomo.com
Data exposed: Email addressesIP addressesPasswordsUsernames

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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.