Fraud & Scams

149 Million Login Credentials Exposed Online

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By Jenny Leight • March 4, 2026

A major online credential leak has put millions of people’s accounts at risk, and this could directly affect your digital, identity, and financial security if any of your email or account passwords were involved.

Here’s what you need to know.

What Happened

Cybersecurity researcher Jeremiah Fowler discovered a publicly accessible, unsecured database containing about 149 million usernames and passwords.

The database was unencrypted and open on the web with no password protection, meaning anyone who found it could view the data.

This wasn’t a breach of a single company’s systems. Instead, the information came from personal computers and phones that had been infected with harmful software. That harmful software quietly collected saved login information without people realizing it.

The stolen data included emails, usernames, passwords, and URLs where those credentials could be used.

This kind of exposure is especially concerning because criminals can take real usernames and passwords and try them on other websites, especially if the same password is used in more than one place.

Accounts Found in the Exposed Data

Security researchers shared estimates showing which accounts appeared most frequently in the exposed database. These numbers represent how many usernames and passwords were found for each service:

• 48 million – Gmail
• 17 million – Facebook
• 6.5 million – Instagram
• 4 million – Yahoo Mail
• 3.4 million – Netflix
• 1.5 million – Outlook
• 1.4 million – .edu (school and university email accounts)
• 900,000 – iCloud Mail
• 780,000 – TikTok
• 420,000 – Binance (cryptocurrency accounts)
• 100,000 – OnlyFans

Why This Matters

If you use any of these services, especially email, your account may be at higher risk — particularly if you:

• Reuse the same password in more than one place
• Save passwords on your computer or phone
• Haven’t changed passwords in a long time

Email accounts are especially important to protect, because they can be used to reset passwords for banks, shopping sites, and other personal accounts.

What You Can Do Now

• Change passwords for important accounts, starting with email and financial accounts
• Use different passwords for different websites
• Watch for unusual emails, login alerts, or activity you don’t recognize

If this feels overwhelming, you’re not alone and you don’t have to figure it out by yourself. Carefull can help monitor for unusual activity and guide you through next steps, calmly and step-by-step.

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Jenny Leight

Jenny Leight supports Business Development & Strategy at Carefull, the first financial safety platform designed to protect aging adults and their families from elder fraud, scams, and money mistakes.

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