What a freeze does, and does not, do
A credit freeze, sometimes called a security freeze, restricts access to your credit report. When your file is frozen, a lender cannot pull it, so a thief cannot open a new card or loan in your name because the application gets blocked.
A freeze does not lower your score, and it does not touch any of your existing accounts. You can still use your current cards, pay bills, and get your free reports while frozen. It only stops new credit checks.
Under federal law the freeze is free to place, free to lift, and free to remove, at every bureau. No one can charge you for it, and placing one does not affect your score in any way.

Freeze all three bureaus
You must freeze each bureau separately, because they are three independent companies. A freeze at only one leaves the other two open, so plan to do all three: Equifax, Experian, and TransUnion.
You can set up each freeze online, by phone, or by mail. Online is fastest and usually takes effect within minutes. By phone it is also quick, and by mail it must be in place within three business days of receipt.
Each bureau will either give you a PIN or let you create an account login. Save those credentials somewhere safe, because you will need them to lift the freeze later. Losing them means an extra identity-verification step down the road.
What you will need to sign up
To verify your identity, each bureau asks for your full name, date of birth, Social Security number, and current and former addresses. They may also ask a few questions pulled from your credit history to confirm it is really you.
Have a government ID and a recent bill or statement nearby in case you are asked to upload proof, especially if you freeze by mail. Keeping these ready makes the process smooth.
If you are protecting a child or a dependent adult, you can freeze their file too. Because minors should have no credit file at all, a freeze there is a powerful shield against child identity theft.
Lifting the freeze when you need credit
When you are ready to apply for a card, a loan, or a mortgage, you temporarily lift, or thaw, the freeze so the lender can pull your report. You can lift it for a set time window or for a specific creditor.
Ask the lender which bureau they use so you only thaw the one you need, though thawing all three is fine if you are unsure. Lifts placed online typically take effect within an hour.
After the application, the freeze automatically goes back on, or you can re-freeze it yourself. Building this thaw-and-refreeze habit lets you keep strong protection without slowing down real applications.
Freeze versus lock versus fraud alert
A freeze is backed by federal law and always free. A credit lock is a product some bureaus market that does something similar but is governed by a contract, not the law, and may carry fees or conditions. For most people the free freeze is the better choice.
A fraud alert is different: it tells lenders to take extra steps to verify your identity but does not block access outright. An initial alert lasts one year and is a lighter-touch option; a freeze is stronger.
You can combine tools. Many people keep a freeze on permanently and simply thaw it when they apply for something, which is the most protective everyday setup available to you.
A free freeze is one of the simplest, most powerful moves you can make to protect the credit you are working so hard to build. Subefy helps you monitor all three bureaus so you notice anything unusual early and can keep your file clean on the road to being mortgage-ready. Estimates are educational, results vary, and no specific result is guaranteed.
