Was My Phone Number Leaked? How to Check and What to Do

Your phone number is more sensitive than you think. It is tied to your bank accounts, used for two-factor authentication, and listed on dozens of data broker sites. If it was leaked in a breach, you are vulnerable to SIM swapping, targeted phishing, and identity theft.

Last updated March 10, 2026

> What to do

  1. 1

    Scan for breaches that included your phone number

    Run an exposure scan to see which breaches leaked your phone number alongside other personal data. Many breaches include phone numbers even when the headlines only mention emails and passwords.

  2. 2

    Add a PIN or passcode to your carrier account

    Call your carrier (AT&T, Verizon, T-Mobile) and set up a port-out PIN. This prevents attackers from transferring your number to their SIM card without knowing the PIN.

  3. 3

    Switch SMS 2FA to an authenticator app

    If you use text messages for two-factor auth, switch to an authenticator app. SIM swapping lets attackers receive your text messages, bypassing SMS-based security entirely.

  4. 4

    Remove your number from data broker sites

    Sites like Spokeo, WhitePages, and TruePeopleSearch list your phone number publicly. An EXPOSE report shows which brokers have your number and includes removal instructions for each one.

  5. 5

    Use a secondary number for online signups

    Get a Google Voice number or similar service for online forms and signups. Keep your real number for banking and trusted contacts only.

> Why phone number leaks are dangerous

SIM swapping is the biggest risk. An attacker calls your carrier, pretends to be you, and transfers your number to their SIM card. Now they receive your text messages — including 2FA codes. They log into your email, reset your bank password, and drain your accounts. The 2024 AT&T breach exposed 73 million phone numbers. The Match Group breach in 2026 exposed millions more. Your number is almost certainly in at least one criminal database.

> SCAN_NOW

Check if your phone number was exposed

Scan your email to see which breaches included your phone number, and which data broker sites are listing it publicly.

* At least one email required (max 3).

Zero-Storage Promise

We don't store your data. Your information is processed in real-time and immediately discarded. You're the customer, not the product.

//public sources | accuracy not guaranteed | informational only

Frequently Asked Questions

What is SIM swapping?▼
An attacker convinces your carrier to transfer your phone number to a new SIM card they control. They then receive all your calls and texts, including security codes.
Can I change my phone number to fix this?▼
You can, but it creates inconvenience and your old number may still be linked to accounts. A carrier PIN and switching away from SMS 2FA are more practical first steps.
Why am I getting so many spam calls?▼
Your number was likely sold by data brokers or leaked in a breach. Removing it from broker sites and using a secondary number reduces spam over time.
Scan Your Email Now
< Back to all guides