New Delhi, June 20 -- Security researchers have uncovered what appears as "one of the largest data breaches in history," containing over 16 billion logins that include Apple accounts. The researchers told Cybernews that the stolen data provides cybercriminals "unprecedented access to personal credentials that can be used for account takeover, identity theft, and highly targeted phishing".

In May, Wired reported the presence of a "mysterious database" containing 184 million records. These were found to be sitting unprotected on a web server. The latest research highlights that the database might just be the tip of the iceberg.

As of now, the researchers have uncovered 30 datasets, with each of them containing up to 3.5 billion records. T...