Data breach reveals up to 14.2 million email logins across six ISPs

A recent security incident uncovered a large-scale data breach. The breach affected six internet service providers. Investigators estimate up to 14.2 million email logins were exposed. Compromised data includes usernames and passwords. The affected ISPs have begun notifying impacted customers. Security teams are urging users to change passwords immediately. Regulators may examine the providers' data‑protection practices. The incident highlights ongoing risks in email authentication systems.