Join our Waitlist for Expert Advice!

Over 10 Billion Passwords Have Been Exposed in the Largest Password Hack in History The data is thought to have been collected over the past two decades.

By Emily Rella Edited by Melissa Malamut

Key Takeaways

  • A text file called RockYou2024 was uploaded to the dark web on July 4, exposing over 10 billion unique passwords.
  • It marks the largest password leak in history.

Opinions expressed by Entrepreneur contributors are their own.

A massive hack occurred over the July 4th holiday when 10 billion unique passwords were exposed from users and customers across a slew of popular websites, including Ticketmaster and Santander.

The plain text file, called RockYou2024, leaked the passwords of customers all over the world. The data is thought to have been collected through a series of hacks over two decades.

Related: Ticketmaster Hack Affects Over 560 Million Customers

"In its essence, the RockYou2024 leak is a compilation of real-world passwords used by individuals all over the world. Revealing that many passwords for threat actors substantially heightens the risk of credential stuffing attacks," researchers for CyberNews said. "Threat actors could exploit the RockYou2024 password compilation to conduct brute-force attacks and gain unauthorized access to various online accounts used by individuals who employ passwords included in the dataset."

The CyberNews team noted the leak, combined with other breaches that exposed email addresses and phone numbers, could lead to "a cascade of data breaches, financial frauds, and identity thefts."

Bad actors could attempt attacks on anything from "internet-facing cameras and even industrial hardware," they added.

For example, if a hacker sees that your email address is associated with the password in the RockYou2024 file, it might check to see if you use the same password for your email address for another company leaked in a separate hack.

Though this hack is said to be the largest in history, it's not the first "RockYou" event.

Related: AT&T Customer Data Leaked to 'Dark Web,' Millions Affected

In 2021, RockYou2021 was published, containing an estimated 8.4 billion passwords. RockYou2024 is thought to include these passwords plus an additional 1.5 billion collected over the past three years. RockYou2021 was primarily composed of social media account passwords.

CyberNews recommends changing passwords used across multiple websites or accounts and enabling multi-factor authorization on any devices possible.

Emily Rella

Senior News Writer

Emily Rella is a Senior News Writer at Entrepreneur.com. Previously, she was an editor at Verizon Media. Her coverage spans features, business, lifestyle, tech, entertainment, and lifestyle. She is a 2015 graduate of Boston College and a Ridgefield, CT native. Find her on Twitter at @EmilyKRella.

Want to be an Entrepreneur Leadership Network contributor? Apply now to join.

Business News

You Have One Month Left to Buy a House, According to Barbara Corcoran. Here's Why.

"If you are planning on waiting a year and seeing where interest rates go, you are out of your mind," Corcoran said.

Franchise

The McRib Is Back, But Only at Select McDonald's — Here's Where to Find It

This scarcity is nothing new. In 2022, McDonald's announced a "Farewell Tour" for the McRib, suggesting that it might be the last time customers could get their hands on it.

Business News

These 3 Side Hustles Make the Most Money While Working Fewer Hours, According to a New Survey

The survey also found that having a side hustle doubled as a path to becoming more employable.

Side Hustle

I Made $14,000 in 1 Week With a Spontaneous Halloween Costume Side Hustle — Here's How

Sabba Keynejad was in art school when he started to refine his entrepreneurial skills.

Business News

This Is the Goal-Setting Method Shohei Ohtani Learned in High School That Helped Get Him to the World Series

The MLB superstar's success did not come as a surprise to him. He had a plan.

Business News

This New Restaurant Is Banking on One Dish — Because It's the Only Entrée on the Menu

The new hotspot is gaining buzz on social media for its innovative yet super simple concept.