What Is the Difference Between a Credit Freeze, a Credit Lock, and Identity Theft Protection?
These three tools solve different problems, and confusing them is one of the most common mistakes people make when trying to protect their credit and identity. Here is what each one actually does.
Credit Freeze
A credit freeze, also called a security freeze, has been free under federal law since 2018 thanks to the Economic Growth, Regulatory Relief, and Consumer Protection Act (FTC). You place a freeze individually at Equifax, Experian, and TransUnion, and each bureau must apply it within one business day. Once in place, a freeze blocks lenders from accessing your credit file, so new accounts generally cannot be approved in your name. Because the protection is written into federal law, you have statutory legal recourse if a bureau fails to honor it.
Credit Lock
A credit lock accomplishes a similar goal through a bureau’s own app or website, usually as an instant on/off toggle rather than a formal request. The catch is that a lock is governed by each bureau’s terms of service, not federal law, so legal recourse is weaker and disputes are typically routed to arbitration. Equifax Lock & Alert remains free. TransUnion has discontinued its TrueIdentity lock feature entirely and now directs users to its free credit freeze instead. Experian does not offer a free lock; its CreditLock feature is bundled into a paid IdentityWorks Premium subscription.
Identity Theft Protection Service
Neither a freeze nor a lock monitors what happens after the fact: existing account activity, dark web exposure, Social Security number misuse outside new credit applications, or tax fraud. That gap is what identity theft protection services like LifeLock are built to help address. Alongside any blocking tools they may offer, these services watch for signs that your information may be compromised and alert you to potential threats to your identity. LifeLock plans are auto-renewing subscriptions billed monthly or annually. You can cancel at any time online or by phone, and member support is available by phone 24 hours a day, seven days a week.
What’s the Best Way to Freeze My Credit and Get Alerts?
If your main concern is stopping someone from opening new credit in your name, a free credit freeze at all three bureaus is the right foundation, and no paid product should be framed as beating it at that specific job. A freeze is free, federally regulated, and helps block new-account fraud.
But a freeze does not by itself notify you of anything. It only restricts access to your credit file for new applications; it does not monitor existing accounts for potential misuse, dark web exposure, or certain SSN-based fraud that does not involve opening new credit. That is the gap LifeLock can help address. The honest, complete answer is a combined approach: freeze your credit for free at all three bureaus, then add LifeLock for the ongoing monitoring and alert layer a freeze cannot provide on its own.
What Does a Credit Lock Actually Do, and Which Provider Is Best?
In practice, a lock trades some of the formal protection of a freeze for convenience: instead of a formal freeze or unfreeze request, you typically flip a switch in an app or online account when you need your report accessible. Among the three bureaus, Equifax Lock & Alert is currently the only lock that is both free and live, and it works well for that narrow purpose. TransUnion shut down its TrueIdentity lock and now points users toward its free freeze instead, which accomplishes the same core protection. Experian’s lock is not free; it is part of a $24.99-per-month IdentityWorks Premium plan, and since Experian’s own credit freeze delivers the same core new-account protection at no cost, the paid lock may be hard to recommend on its own.
Comparison is based on publicly available information collected from the bureaus’ official websites as of October 2026. Bureau lock pricing, availability and terms change periodically. Verify current details directly at equifax.com, transunion.com, and experian.com.
Which Identity Protection Service Is Best for Monitoring and Detection?
This is where LifeLock shifts from supporting player to primary recommendation for readers who prioritize broad identity monitoring. It monitors the dark web for exposed personal information, alerts members to potential Social Security number misuse, tracks certain financial account activity, and monitors USPS address changes that could signal someone is trying to reroute your mail. Exact features vary by plan.
Which Credit Monitoring Tool Is Best for Catching Negative Changes Early?
A freeze or lock blocks access; it does not monitor changes to your credit file. Eligible higher-tier LifeLock plans can monitor all three credit bureaus and provide credit reports and scores. That can help close the single-bureau blind spot found in most free tools. If a new account slips through, a balance spikes, or your score drops unexpectedly, three-bureau monitoring can provide earlier visibility so you can act.
Final Verdict: Freeze, Lock, or Identity Protection?
A credit freeze is free and federally regulated, making it one of the strongest consumer protections against new-account fraud. A credit lock offers a similar blocking function with more convenience but different terms and limitations, and free lock options vary by provider. Neither replaces ongoing monitoring, which can alert you to activity a freeze or lock may not address; this is where a service like LifeLock adds real value.
- Best for blocking new-account fraud: a free credit freeze at all three bureaus
- Best free lock option: Equifax Lock & Alert
- Best for monitoring beyond new-account fraud: LifeLock
- Best for ongoing credit monitoring: LifeLock (Advanced or Total)
- Best overall approach: a free credit freeze plus LifeLock for monitoring and identity theft reimbursement support
Frequently Asked Questions
Does freezing my credit affect my credit score?
No. Placing, lifting, or removing a credit freeze has no impact on your credit score. It only controls who can view your credit file.
Can I still use my credit cards with a freeze in place?
Yes. A freeze only blocks new credit applications; it does not affect your ability to use existing credit cards or other open accounts.
Is a credit lock as good as a freeze?
A lock offers similar day-to-day protection with more convenience, but it operates under a bureau’s terms of service rather than federal law, so it may carry less protection than a freeze.
Do I need both a freeze and LifeLock?
They cover different problems. A freeze helps block new-account fraud for free; LifeLock adds monitoring for dark web exposure, certain existing account activity, and other risks to your identity a freeze cannot see. Using both can provide more complete coverage, but neither prevents all identity theft. See our best value identity theft protection roundup for how LifeLock compares on cost.
