The Collection #1 Data Breach: Insights and Tips on This Cyberthreat

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As the cybersecurity landscape evolves to match new trends in technology, it’s important for consumers to prioritize the protection of their online presence. That means remaining aware of the internet’s more common cyberthreats, including malware, phishing, and data breaches, and how they could potentially affect you. And while most of us already know about the Equifax data breach, a new monster breach now has to become top of mind for us all. Say hello to Collection #1, a data set exposing 772,904,991 unique email addresses and over 21 million unique passwords.

Discovered by security researcher Troy Hunt, Collection #1 first appeared on the popular cloud service called MEGA. The Collection #1 folder held over 12,000 files that weigh in at over 87 gigabytes. When the storage site was taken down, the folder was then transferred to a public hacking site. What’s truly astonishing about this is that the data was not for sale; it was simply available for anyone to take.

You may be wondering, how was all this data collected? It appears that this data was comprised of a breach of breaches, aggregating over 2,000 leaked databases containing cracked passwords, in order to achieve maximum exposure. The sheer volume of this breach makes Collection #1 the second largest in size to Yahoo, and the largest public breach ever (given the data was openly exposed on the internet).

It appears that this data set is designed for use in credential-stuffing attacks, where cybercriminals will use email and password combinations to hack into consumers’ online accounts. The risks could be even greater for those who reuse credentials across multiple accounts. In order to help protect yourself from this threat, it’s vital that users act fast and use the following tips to help protect their data:

  • Use strong, unique passwords. In addition to making sure all of your passwords are strong and unique, never reuse passwords across multiple accounts. You can also enable a password manager to help keep track of your credentials.
  • Change your passwords. Even if it doesn’t appear that your data was breached, it’s better to err on the side of caution and change all of your passwords to better protect yourself.
  • Enable two-factor authentication. While a strong and unique password is a good first line of defense, enabling app-based two-factor authentication across your accounts will help your cause by providing an added layer of security.

And, of course, to stay on top of the latest consumer and mobile security threats, be sure to follow @McAfee_Home on Twitter, listen to our podcast Hackable? and ‘Like’ us on Facebook.

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