Security Blog

Breach analysis, security insights, and practical tips to keep your data safe.

Mar 5, 2026

Over 8,700 Breaches Exposed Plaintext Passwords: Here's Why It Keeps Happening

Despite decades of security warnings, 8,733 data breaches in our database still exposed passwords in plaintext—readable text that anyone can use immediately. This preventable vulnerability affects billions of accounts and reveals a shocking pattern of negligence.

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Mar 2, 2026

Marriott-Starwood: 500 Million Hotel Guests Had Their Data Stolen

Attackers spent four years inside the Starwood reservation system before Marriott discovered the breach. Passport numbers, credit cards, and travel histories of half a billion guests were exposed.

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Feb 26, 2026

When Breaches Hit Billions: What XSS.IS and Collection #1 Teach Us

Nearly 19 billion records sit in breach databases worldwide. The largest single incident—XSS.IS Combolist with 2.47 billion credentials—reveals how password reuse transforms individual hacks into catastrophic exposure chains that threaten everyone.

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Feb 23, 2026

Equifax: When a Credit Bureau Loses 147 Million Social Security Numbers

The 2017 Equifax breach exposed Social Security numbers, birth dates, and addresses for nearly half the U.S. population. This breach changed the conversation about corporate responsibility for personal data.

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Feb 18, 2026

XSS.IS Combolist: Inside the 2.4 Billion Record Breach That Exposed Everything

With 2.47 billion records, the XSS.IS Combolist remains the largest credential exposure in history. Leaked in February 2019, it contained usernames, email addresses, and plaintext passwords—a master key to digital identities worldwide.

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Feb 18, 2026

The Yahoo Breach: How 3 Billion Accounts Were Compromised

In the largest data breach ever recorded, Yahoo disclosed that all 3 billion of its user accounts were stolen. Here's what happened, why it matters, and what it teaches us about corporate cybersecurity.

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Feb 18, 2026

Stealer Logs: The Growing Threat You Need to Understand

Stealer malware silently harvests saved passwords, session cookies, and autofill data from infected devices. Learn how info-stealers work, why they're more dangerous than traditional breaches, and how to protect yourself.

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Feb 10, 2026

The State of Data Breaches in 2026: What You Need to Know

Data breaches continue to grow in scale and sophistication. Here's what the current landscape looks like and how to protect yourself.

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Feb 1, 2026

Password Reuse: The Hidden Danger Lurking in Data Breaches

Credential stuffing attacks exploit password reuse across services. Learn why using the same password everywhere puts all your accounts at risk.

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Jan 31, 2026

What to Do After a Data Breach: A Step-by-Step Guide

Discovering your data has been breached can be alarming. Here's a practical guide to securing your accounts and minimizing damage.

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Jan 30, 2026

Understanding Password Hashing: Why It Matters for Your Security

Not all password storage is created equal. Learn the difference between plaintext, MD5, SHA1, bcrypt, and modern hashing algorithms.

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Nov 13, 2016

LeakedSource Analysis of FriendFinder Networks Hack

Sexual secrets for hundreds of millions exposed in largest hack of 2016 November 13th, 2016 Quick links What happened? Who are we? Deleted Users Passwords Emails Languages Site Growth and Usage...

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