A dataset of 2 billion email addresses and 1.3 billion passwords have been discovered online — leaving millions of people vulnerable to account takeovers.

The dataset, compiled by security intelligence firm Synthient , aggregates credentials from years of prior breaches, malware logs and dark web marketplaces.

But it isn’t the result of a single hack.

The information includes data from several hacks — new and old.

And when your data is leaked online, it lives there indefinitely.

The good news is you don’t have to guess whether your information is included.

How to check if your data’s been leaked

The information included in the leaked dataset has been tracked by the widely used service, Have I Been Pwned .

Users can check whether their information is included in the breached dat

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