“There’s no shortage of data breaches these days, but this one should make you sit up and pay attention. The newly discovered “Collection #1” is the largest public data breach by volume, with 772,904,991 unique emails and 21,222,975 unique passwords exposed.
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Update 3:42pm ET: It gets worse. Security reporter Brian Krebs reports that the Collection #1 trove is just a single offering from a seller who claims to have at least six more batches of data. Also, the Collection #1 data is said to be 2-3 years old, so not exactly the freshest but potentially still valuable to malicious actors. Including the Collection #1 data, Krebs writes, this person is selling “almost 1 Terabyte of stolen and hacked passwords.”
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Source: Massive Collection #1 Breach Exposes 773 Million Emails