leaksear.ch indexed 7,858 Interia.pl email-and-password records on October 13, 2026; Interia is a Polish portal whose Interia Poczta service says it has more than 2.5 million individual and business users (firma.interia.pl) (leaksear.ch metadata). No breach date is listed, and the available public context supports treating this as credential exposure tied to broader leaked-credential and infostealer ecosystems, not a confirmed compromise of Interia.pl infrastructure (leaksear.ch metadata).
What happened
The indexed source is named Interia.pl, but neither the metadata nor the public sources reviewed confirm an intrusion into Interia.pl's own systems. HackNotice has a public interia.pl notice saying the domain was reported by one of its monitored public breach, leak, and hack data streams, while a Darkport password analysis shows interia.pl addresses appearing in wider leaked-credential datasets as free email provider accounts (app.hacknotice.com, www.darkport.co.uk).
GeekWeek w INTERIA.PL has also reported on Polish infostealer activity involving malware families such as Redline, Raccoon, and Vidar, and said stolen login data for services including Interia appeared in dark web and deep web circulation (geekweek.interia.pl). Based on the public record available here, the precise source of this 7,858-record Interia.pl credential set remains unconfirmed (leaksear.ch metadata).
What data was exposed
The leaksear.ch indexing metadata lists two exposed fields: email and password (leaksear.ch metadata). No other stored fields were listed for this source, and no raw values are included in this article (leaksear.ch metadata).
Why this matters
An email-plus-password pair can let attackers try password reuse against Interia Poczta and other services tied to the same address, which HackNotice describes as a common path to account takeover in leaked-credential incidents (app.hacknotice.com) (leaksear.ch metadata). If the password came from infostealer malware, the same malware class has been publicly associated with stolen login data, cookies, browsing data, and payment card numbers, raising the risk of phishing that references real account details (geekweek.interia.pl). Because Interia Poczta is an email service, control of an exposed mailbox can become a reset path for other accounts that use the same address (firma.interia.pl) (leaksear.ch metadata). Anyone who has used an Interia.pl email address should check whether their email and password appear in this leak and change any reused passwords immediately (leaksear.ch metadata).
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