<ul data-eligibleForWebStory="true">Cybernews researchers discovered the largest compilation breach of leaked login data in history, with 16 billion records from 30 unsecured data sets.The breached data includes passwords for popular services like Google, Facebook, Apple, and more.The leaked data did not originate from a central breach but was compiled from various incidents by malicious software called 'infostealers'.The true number of affected individuals remains unclear due to potential duplicates, with the number of records exceeding the world's population.Experts warn that the breach provides a blueprint for mass exploitation through phishing, identity theft, and account takeovers.The exposure appears recent and poses a significant threat as the data was collected from recent incidents.Researchers secured the data after finding it briefly accessible online through unprotected cloud storage.Users are advised to take immediate protective measures such as changing passwords, enabling two-factor authentication, and using password managers.Google suggests using passkeys and non-password login methods to enhance security.Services like Apple, Facebook, and Google's password managers can alert users if their credentials are involved in known data breaches.