high
Data leak
Reported theft of about one million user records through retired webmail software
Security press reported in June 2025 that an attacker exploited the Roundcube webmail platform used by cock.li and offered the resulting databases for sale. According to the service's own statement as reported, records for an estimated 1,023,800 users who had logged in to webmail since 2016 were exposed, with contact entries for a further subset; passwords, email content and IP addresses were not included. The service removed Roundcube entirely.
Outcome unknown Source: bleepingcomputer.com ↗