Equifax Hack & the 5 Biggest Credit Card Data Breaches
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By Farrukh Mushtaq
Farrukh Mushtaq
See author profileFarrukh Mushtaq, a digital marketer at PureSquare, possesses a keen interest in cybersecurity and enjoys writing about it. With several years of experience in the digital marketing industry, he brings expertise and passion to his work.
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6 March 2025
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13 mins read
Data breaches are a growing problem, with hackers stealing millions of credit card details over the years. One of the biggest was the Equifax hack, which exposed the personal and financial data of 147 million people. But Equifax isn’t the only company hit by such attacks.
In this guide, learn about the five most significant breaches, how they affect people, and how to keep your personal information safe.
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Five of the Biggest Credit Card Data Breaches in History
Equifax Data Breach (2017)
In 2017, Equifax, one of the largest credit reporting agencies, was hacked due to a security flaw in its website. Hackers stole the personal and financial data of 147 million Americans, including:
- Social Security numbers
- Credit card numbers
- Names and addresses
- Birthdates
The breach happened because Equifax failed to update its security systems, even though a fix was available. The company later agreed to a $700 million settlement, offering affected customers free credit monitoring and compensation.
Target Data Breach (2013)
During the holiday shopping season in 2013, hackers attacked Target, stealing 40 million credit and debit card details. They did this by infecting the store’s payment systems with malware.
The breach also exposed the personal information of 70 million customers, including names, phone numbers, and email addresses. Target later paid $18.5 million in settlements and improved its security systems.
Home Depot Data Breach (2014)
In 2014, hackers targeted Home Depot, using malware to steal 56 million credit card numbers. The attack lasted for five months, and the stolen data was later sold on the dark web.
Home Depot had to pay $179 million in settlements and improve its cybersecurity measures.
Marriott Data Breach (2018)
The Marriott hotel chain experienced a significant data breach in 2018, affecting the personal information of 500 million guests.
- Credit card details
- Passport numbers
- Home addresses
Hackers infiltrated Marriott’s systems for four years before the breach was discovered. The company faced significant fines and had to enhance its security protocols.
Capital One Data Breach (2019)
In 2019, a hacker stole personal and financial information from 100 million Capital One customers. This included:
- Credit scores
- Credit card details
- Social Security numbers
The hacker, a former tech worker, exploited a weakness in Capital One’s cloud storage. The company was fined $80 million for failing to secure its data properly.
What Are the Risks of a Credit Card Data Breach?
If your credit card data is leaked, you could face:
Financial Fraud
Hackers can use your stolen card details for unauthorized purchases or sell them online.
Identity Theft
Cybercriminals can open fake accounts in your name and ruin your credit score.
Phishing Scams
Hackers may send fake emails or texts, tricking you into giving more personal information.
How to Protect Your Credit Card Information
Use Strong Passwords
- Create unique passwords for online banking and shopping.
- Avoid using the same password on multiple sites.
Monitor Your Bank Statements
- Check your transactions regularly for suspicious activity.
- Set up alerts for unusual spending.
Beware of Phishing Scams
- Don’t click on unknown links in emails or texts.
- Verify messages directly with your bank before taking action.
Enable Multi-Factor Authentication (MFA)
Use two-step verification for extra security on banking apps and accounts.
Enable Dark Web Monitoring
PureVPN can notify you if your data appears in dark web marketplaces or is exploited through social platforms show why it’s important to use strong, unique passwords for each account and enable two-factor authentication for extra security.
How PureVPN Can Help Protect Your Data
To minimize risks, consider using PureVPN's Dark Web Monitoring feature. This tool helps track leaked data and alerts you if your information appears on the dark web.
How to Set Up Dark Web Monitoring
- Install or update PureVPN on your device.
- Log into the Members Area.
- Go to the Dark Web Monitoring section.
- Select Add Assets to Monitor.
- Add your email, phone number, or other sensitive details.
- Verify via the code sent to your registered number.
- Follow recommended actions if your data is found in a breach.
- Mark breaches as resolved once you've taken corrective steps.
Frequently Asked Questions (FAQs)
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How do hackers steal credit card details?
They break into company systems, install malware, or trick people into entering details on fake websites. Then, they sell or use the stolen data for fraud.
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Can a credit card breach affect my bank account?
Yes, if hackers get enough personal details, they might try to access your bank account. Changing passwords and using extra security helps protect it.
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What should I do if my credit card data is leaked?
Contact your bank immediately to block or replace your card. Keep an eye on your transactions and set up alerts for unusual activity.
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How soon do hackers use stolen credit card information?
Sometimes instantly, but they may also sell it. That’s why acting fast and securing your accounts is important.
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Are small businesses targeted in data breaches?
Yes, because they often have weaker security. Using secure payment systems and updating software can help prevent attacks.
Final Thoughts!
Data breaches like the Equifax hack show how vulnerable our personal and financial information can be. Once hackers steal your data, they can misuse it in many ways. That’s why it’s important to stay alert, monitor your accounts, and take steps to protect your information.
Don’t wait for the next breach, take control of your online security today!
