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Mother of All Breaches Exposes 773 Million Emails, 21 Million Passwords

Discussion in 'General Malware And Security' started by Rustys, Jan 17, 2019.

  1. Rustys

    Rustys Super-Moderator Super Moderators

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    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.

    The breach was first reported by Troy Hunt, the security researcher who runs the site Have I Been Pwned (HIBP), where you can check if your email has been compromised in a data breach. In his blog, Hunt says a large file of 12,000 separate files and 87GB of data had been uploaded to MEGA, a popular cloud service. The data was then posted to a popular hacking forum and appears to be an amalgamation of over 2,000 databases. The troubling thing is the databases contain “dehashed” passwords, which means the methods used to scramble those passwords into unreadable strings has been cracked, fully exposing the passwords.

    So what does this mean for the average person? According to Hunt, it means compromised email and password combos are more vulnerable for a practice called credential stuffing. Basically, credential stuffing is when breached username or email/password combos are used to hack into other user accounts. This could impact anyone who has used the same username and password combo across multiple sites. This is concerning as the Collection #1 breach contains almost 2.7 billion combos. Plus, around 140 million emails and 10 million passwords from Collection #1 were new to Hunt’s HIBP database—meaning they’re not from previously reported megabreaches.

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    Last edited: Jan 17, 2019
  2. plodr

    plodr CHF Advisor CHF Advisers

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  3. Tony D

    Tony D Super-Moderator Super Moderators

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    I checked and found my password (123456789) has been used by other people. I can't image that.
     

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