Both tools lock a credit file, but each guards only one of three bureaus. That gap is what leaves you exposed, and there’s a free way to close it at all three.
After every big data breach, the pitch is the same: lock your credit so no one can open accounts in your name. Experian CreditLock and TransUnion TrueIdentity both promise exactly that, and both work as advertised. The problem is not whether they lock your file, it is how much of your file they cover. Each guards only its own credit bureau, and there are three that lenders check. Lock one and leave two open, and a thief simply uses a bureau you did not protect. Here is what each service really does, the gap that catches people, and the free way to cover all three bureaus at once.
The Verdict
TransUnion TrueIdentity is free and locks your TransUnion file, with monitoring alerts and a modest identity theft insurance amount. Experian CreditLock locks your Experian file but only as part of a paid membership, Experian CreditWorks Premium, at about 25 dollars a month, which bundles three-bureau monitoring and larger insurance. The catch with both is coverage: a lock or monitor at one bureau does nothing at the other two. The strongest protection is not either product, it is a security freeze at all three bureaus, which is free by federal law and legally enforceable in a way a lock is not. Use free locks or freezes across Equifax, Experian, and TransUnion, and do not pay for single-bureau coverage you can get free.
What each product actually does
They aim at the same job from different business models. TransUnion TrueIdentity is free, gives you access to your TransUnion report, sends monitoring alerts, and includes a modest amount of identity theft insurance, and its lock covers your TransUnion file only. Experian CreditLock is not sold on its own, it comes inside Experian CreditWorks Premium at roughly 25 dollars a month, and while the lock itself covers your Experian file, the membership adds monitoring across all three bureaus, monthly scores, and a larger insurance figure. So one is a free single-bureau tool, and the other is a paid bundle whose lock is still single-bureau even though its monitoring is not.
The gap: one bureau is not three
This is the part the marketing glosses over. Lenders pull your credit from one or more of three major bureaus, Equifax, Experian, and TransUnion, and a lock or monitor only affects the bureau that offers it. If you lock only your TransUnion file, a lender that checks Equifax or Experian sees an open file, and a thief can open an account there. Monitoring has the same limit: an alert only fires for activity at the bureau doing the watching. Protecting a single bureau feels like protection, but it leaves two-thirds of your credit exposed, which is exactly the false sense of security that lets fraud through.
Lock versus freeze: only one is backed by law
There is also a difference in what stands behind the tool. A credit lock is a private contract with the bureau, governed by that company’s terms. A security freeze is different: it is guaranteed by federal law under the Fair Credit Reporting Act, free at every bureau, and if a bureau mishandles it you have legal recourse. The CFPB explains the difference between a freeze and a lock, and the practical takeaway is that a freeze is the stronger, and free, option. A lock may be more convenient to toggle from an app, but convenience is not the same as the legal protection a freeze carries.
The free way to cover all three bureaus
You can close the gap without paying anything. The most protective move is to place a security freeze at all three bureaus, which the FTC walks through in its guide to credit freezes and fraud alerts. You set each one up separately with the bureau, and you temporarily lift it when you need to apply for credit. If you prefer app-based locks, you can combine free locks where they are offered with a free freeze at the remaining bureau, again covering all three at no cost. Treat monitoring as a supplement, not a substitute, since it tells you after something happened rather than preventing it.
When paying for CreditLock makes sense
Paying for a bundle like Experian CreditWorks Premium can be reasonable, but be clear about what you are buying. You are not paying for stronger protection of your Experian file, since a free Experian freeze does that. You are paying for the extras: three-bureau monitoring in one place, regular scores, a larger insurance figure, and the convenience of instant locking. If you genuinely value those and will use them, the fee may be worth it. If your goal is simply to stop new accounts being opened, freezes at all three bureaus do that for free, and the subscription adds cost without adding core protection.
This article is general information, not financial or legal advice. Identity protection products and their terms change, so confirm current features, prices, and your rights with the bureaus and official resources before deciding.
Frequently Asked Questions
Does locking one credit bureau protect me?
No. A lock or monitor only affects the bureau that offers it, and lenders may check any of the three. Locking one leaves the other two open, so a thief can still open accounts through a bureau you did not protect.
Is TransUnion TrueIdentity really free?
Yes. It offers a free TransUnion credit lock, monitoring alerts, and a modest identity theft insurance amount, covering your TransUnion file only. It is a fine free tool, but it does not protect Equifax or Experian.
How much does Experian CreditLock cost?
It is not sold alone. It comes with Experian CreditWorks Premium at about 25 dollars a month, which adds three-bureau monitoring, scores, and larger insurance. The lock itself still covers only your Experian file.
What is the difference between a credit lock and a freeze?
A freeze is guaranteed by federal law, free at all three bureaus, and legally enforceable if mishandled. A lock is a private contract with the bureau, often app-based, but without the same legal backing. The freeze is the stronger option.
What is the best free way to protect my credit?
Place a security freeze at all three bureaus, Equifax, Experian, and TransUnion, which is free and prevents new accounts from being opened. Lift a freeze temporarily when you need to apply for credit, and use monitoring as a supplement.
Is credit monitoring enough on its own?
No. Monitoring is reactive, alerting you after activity occurs and only at the bureau doing the watching. It is useful as an early warning, but a freeze at all three bureaus is what actually prevents fraudulent accounts.
What To Do Next
Do not confuse locking one bureau with protecting your credit. Experian CreditLock and TransUnion TrueIdentity each guard a single bureau, which leaves two wide open, and that gap is where identity theft slips through. The stronger and cheaper answer is a security freeze at all three bureaus, free by law and legally enforceable, lifted only when you need to apply for credit. Add monitoring if you want an early warning, and pay for a bundle only if you truly value its extras, not because you think it is the only way to lock your file. Cover all three bureaus, and you close the gap that single-bureau products leave open. For more, see how to report an online scam to the FTC and what an unrequested password reset email really means.
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