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Ultimate Internet Security
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PC-Tune Up
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Secure your digital life.

Total Defense makes internet security easy for you and tough on destructive malware. We don’t just protect devices, we protect people.

Our software works hard so you don’t have to—no complex questions or specialized knowledge required.

Virus-free. Hassle-free. Worry-free.

Security designed for people, around people.
VB100 Certified
VB100 Certified

Our virus and malware protection is put through the toughest tests to ensure your are protected.

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Free US Tech Support
Free US Tech Support

Our friendly US-based team is standing by to assist with customer care & technical support.

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Money Back Guarantee
Money Back Guarantee

If you’re not completely satisfied, we’ll refund your money within 60 days of purchase.

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Virus-Free Guarantee
Virus-Free Guarantee

We’re so confident in our virus protection, we will remove it for free or give your money back.

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Total customer satisfaction is our ultimate goal

Don’t take our word for it…
 

I love the feeling of trust I have, knowing that my PC, laptop, tablet, and phone are all "totally defended" from the potential harm that is out there in the cyber world.

- Leslie K.

Total Defense 5 Star rating

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Lightweight and easy! This works great. It was easy to set up and activate. The best part is my computer hasn't slowed down a bit.

- Jerry C.

Total Defense 5 Star rating

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Good product at a good price What's good is it covers tablets, PCs, phones. Also has online backups and mobile security features too, so plenty of value for money. Works well and gets the job done!

- Nakul D.

Total Defense 5 Star rating

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A great Internet security suite for PC users, great parental controls, well-integrated online backup "set it and forget it," good antivirus performance, low cost, can use on multiple devices.

- Isadora L.

Total Defense 5 Star rating

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Easy installation, did not slow down the computer and scanning was super fast. Feel better having protection from all the new ransomware and viruses going around.

- Wayne F.

Total Defense 5 Star rating

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I put this product on different computers and tablets for several years. It's easy to use and understand. Updates consistently to keep up with any new virus and malware. Customer support is always helpful.

- Stepheni H.

Total Defense 5 Star rating

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Protection for all the devices in your home

Premium Internet Security
4.9 (71 Reviews)
Total Defense

Premium Internet Security

Premium Internet Security provides simple, smart, and reliable protection from viruses, spyware, and malware on up to 5 of your smartphones, tablets, desktops, and laptops.

  • Shop, bank and explore your social network without worry
  • Protect your information from cyber criminals when you’re shopping and banking online
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$69.99
$89.99
Save $20
5 Devices
10GB Online Backup
Windows Mac Android
Buy with Confidence
Free US-Based Support
Certified Secure Checkout
60 Day Money Back Guarantee
Our other popular internet security software choices, to keep you and your devices safe.
Ultimate Internet Security
4.9 (41 Reviews)

Ultimate Internet Security

Protect everyone on every device in your home - Ultimate is an easy-to-use, all-in-one Internet Security suite that protects you, your family, and up to 10 of your devices from harmful viruses and the latest online threats.

Learn about Ultimate Internet Security >

Anti-Virus
4.9 (35 Reviews)

Essential Anti-Virus

Anti-Virus security ensures you’re totally covered keeping your devices safe from malware, spyware, ransomware, and harmful viruses.

Learn about Essential Anti-Virus >

Award winning internet security software

Powerful virus detection that doesn’t slow you down.

Learn more about our highly rated malware protection or get started today with a free 30-day trial of Total Defense Internet Security, with no obligation to buy.

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AV Comparatives Advanced Plus Malware Protection

AV Comparatives Advanced Plus

AV Comparatives Advanced Plus Malware Protection

AV Comparatives Advanced Plus

Virus Bulletin 100 Certified

VB100 Certified

AV Comparatives Advanced Plus Real-World Protection

AV Comparatives Advanced Plus

OPSWAT Certified

OPSWAT Certified

AV Comparatives Advanced Plus Performance

AV Comparatives Advanced Plus

We will keep you virus-free guaranteed

An exclusive automatic renewal service benefit.
Total Defense Virus-Free Guarantee

When you choose Total Defense, you’re safeguarded with award-winning, multi-layered virus protection technology. Our powerful security lets you confidently shop, bank and browse online. In fact, we’re so certain we can protect you, if you’re running a Total Defense Security Product and a virus slips past our powerful protection, our expert technology advisors will remove the virus from your device for free. In the unlikely event the virus can’t be removed, we will give you your money back.

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We’ve Got You Covered

Over 20 years of Dedication

We are committed to your cybersecurity, from installing the software effectively to helping recovery in the event of a breach.

Advanced Threat Protection

A good offense is the best defense! Real-time and on-demand malware scanning engines provide powerful proactive protection.

Award Winning Security

Powerful protection, securing all entry points, wherever you are, whatever type of device you’re using to access the internet.

Customer Commitment

Our US-based support team is focused on keeping you and your family safe in the ever changing connected world.

Why Total Defense Internet Security >

Defend the Defenseless

Total Defense has been a proud supporter of the National Center for Missing & Exploited Children for over 15 years.

Total defense has supported NCMEC in it’s mission to help find missing children, reduce child sexual exploitation and prevent child victimization. We provide quarterly monitary support for NCMEC’s efforts to provide important programs that assist missing and exploited children nationwide.

To learn more about NCMEC, visit www.missingkids.org or see NCMEC on Twitter and Facebook.

Total Defense has been a proud supporter of the National Center for Missing & Exploited Children

Rated #1 anti-virus software company on Consumer​Affairs.com

Over 2,000 customer reviews
We always strive to create the best customer service experience and our customers agree. Total customer satisfaction is our ultimate goal.
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Total Defense

Internet Security and Safety Center

Helpful tips and articles with practical steps you can follow to improve your online safety
Online Safety

Total Defense Security Tip of the Day

09.12.25

The secret knock: why you need two-factor authentication

You've got a unique, super-strong password for all your online accounts, right? Awesome! That’s a great first step. But what if a hacker manages to get their hands on it anyway? Maybe you logged in on a compromised computer, or a website you use had a data breach. Suddenly, that one password is all a hacker needs to get into your email, your social media, or even your banking app. Scary, huh?

This is where Two-Factor Authentication (2FA) comes in. Think of it as a secret knock for your digital life. It's an extra layer of security that makes it nearly impossible for a hacker to get into your account, even if they have your password.

What is Two-Factor Authentication?

It's pretty simple, really. It requires you to provide two different pieces of evidence to prove that you are who you say you are.

The first piece is something you know—your password.

The second is something you have—a code from your phone, a fingerprint, or a physical security key.

When you log in to an account with 2FA enabled, you first enter your password like you normally would. Then, the website or app asks for a second piece of information. This could be a six-digit code sent to your phone via text message, a code generated by an app on your phone, or a biometric scan. You provide that second piece of information, and boom, you're in.

Why is 2FA So Important?

Even the most complex passwords can be vulnerable to data breaches or phishing scams. A hacker might get a list of usernames and passwords from a company they’ve hacked. When they try to use your password to log in to your account, they'll hit a roadblock: they won't have the second factor. They can't get that code from your phone, so they're locked out. This is a powerful defense that stops most cybercriminals in their tracks.

How Do You Get Started with 2FA?

Most major websites and apps now offer 2FA. Here's what you need to do:

  • Find the Settings: Log in to your favorite websites and apps and go to the security settings. Look for an option like "Two-Factor Authentication," "Two-Step Verification," or "Login Approvals."
  • Choose a Method: You'll usually be given a few options for your second factor. The most common are:
    • Text message (SMS): A code is sent to your phone via text. It's easy, but less secure than other options because text messages can sometimes be intercepted.
    • Authenticator App: An app like Google Authenticator or Microsoft Authenticator generates a new code every 30 seconds. This is more secure because the codes are not sent over an insecure network like SMS.
    • Physical Security Key: A small physical device you plug into your computer to log in. This is the most secure option.
  • Enable It: Follow the on-screen instructions to set it up. It's usually a quick and easy process.

It might feel like a hassle at first, but taking a few extra seconds to log in is a small price to pay for the peace of mind knowing your accounts are protected. Don't wait for a hack to happen—enable 2FA on your most important accounts today!


The rise of QR Code Phishing (Quishing): How to stay safe in 2025

Remember when QR codes were a quirky novelty? We’d scan them to visit a website or get a discount at a store. Fast forward to today, and they’re everywhere! We scan them to view restaurant menus, pay for parking, board a flight, or even log in to our bank accounts. They’re incredibly convenient, but with […] Read More»

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