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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.
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Protection for all the devices in your home
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
Our other popular internet security software choices, to keep you and your devices safe.
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.
Essential Anti-Virus

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

AV Comparatives Advanced Plus

VB100 Certified

AV Comparatives Advanced Plus

OPSWAT Certified

AV Comparatives Advanced Plus
We will keep you virus-free guaranteed
An exclusive automatic renewal service benefit.

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.
»Important terms and offer detailsWe’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.

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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

Total Defense Security Tip of the Day
08.08.25
Why you need two-step verification for Yahoo Mail
Your email account is a treasure trove of personal information. It's the key to your social media, banking, and shopping accounts. So, if you're a Yahoo Mail user, protecting it with just a password isn't enough anymore. You need to add a powerful second layer of defense: two-step verification.
Think of your password as the front door lock to your home. It's a good first step, but a savvy burglar can still pick it. Two-step verification is like adding a second, high-tech security gate. Even if someone somehow gets past your front door, they're stopped cold at the second gate because they don't have the unique key to get through. It's the single most effective thing you can do to prevent hackers from getting into your Yahoo Mail account.
The Two-Step Verification Advantage:
- Your Password Isn't Enough: Passwords can be stolen, phished, or even exposed in a data breach. A cybercriminal might know your password, but with two-step verification, that's not enough to get in.
- The "Something You Have" Factor: With two-step verification, every time you or someone else tries to sign in to your Yahoo Mail from a new device or application, two things are required:
- Your password (something you know).
- A unique, one-time code (something you have, specifically your phone).
- Stops Hackers Cold: If a hacker tries to log in from a device they control, they might have your password, but they won't have your phone. They'll be stopped dead in their tracks at the "Enter your unique code" screen, and your account stays secure.
- Instant Alerts: You'll also get an immediate notification that a sign-in was attempted, giving you a real-time heads-up about a potential threat.
How to Set Up Two-Step Verification for Yahoo Mail:
Ready to lock down your Yahoo Mail account? It's a simple process that gives you a massive security boost.
- Log In to Your Yahoo Account: First, open your web browser and go to your Yahoo account settings. You can usually find this by clicking your profile picture or your name in the corner and then navigating to "Account Info."
- Go to the Security Page: Look for a section labeled "Account security" or "Security settings."
- Enable Two-Step Verification: Find the setting for "Two-step verification" and toggle it on.
- Verify Your Phone Number: Yahoo will walk you through the process of adding and verifying your phone number. They'll send you a test code to make sure it's correct.
- Choose Your Code Method: You can usually choose to receive your unique code via a text message or a voice call. You might notice that the phone number that sends the code changes each time; this is a normal security measure from Yahoo.
Once you've set it up, the next time you sign in from a new device, you'll be asked to enter the password, and then you'll receive a code on your phone. Just enter that code, and you're in! This small extra step is your most powerful defense against unauthorized access.
Don't wait for your account to be compromised. Take a few minutes today to enable two-step verification for your Yahoo Mail and enjoy a much safer, more secure email experience.
The rise of QR Code Phishing (Quishing): How to stay safe in 2025
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60 Day Money Back Guarantee

Money Back Guarantee Program
Total Defense is committed to helping you with your refund. If our product does not meet your expectations for any reason, we will provide a full refund within 60 days of your purchase.
Virus Protection Assurance Program

Virus Protection Assurance Program
An exclusive benefit for customers enrolled in the Automatic Renewal Service.
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.
»Important terms and offer detailsFree US-Based Support Team

Need Assistance?
US-Based Support • Weekdays 9am – 5pm, Eastern Time USA
Technical Support
Call 1-866-305-7989
or Email
Free technical support includes:
- Download and installation
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Customer Care
Call 1-877-906-8816
or Email
Customer care assists with:
- Sales and orders
- Account information
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The VB100 Award

VB100 Certification
The VB100 award is a certification of products which meet the basic standards required to be recognized as legitimate and properly functioning anti-malware solutions.
To display a VB100 logo, a product must:- Prove it can detect 100% of malware samples listed as ‘In the Wild’ by the WildList Organization
- Generate no false positives when scanning an extensive test set of clean samples.
- All this must be done with default, out-of-the-box settings in the VB lab environment.