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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.

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“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.

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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.”

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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! ”

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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.”

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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.”

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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.”

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Protection for all the devices in your home

Premium Internet Security
☆☆☆☆☆ 4.9 (72 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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Ultimate Internet Security
☆☆☆☆☆ 4.9 (42 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.

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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.

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Award winning internet security software

Powerful virus detection that doesn’t slow you down.

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AV Comparatives Advanced Plus Malware Protection

AV Comparatives Advanced Plus

AV Comparatives Advanced Plus Malware Protection

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AV Comparatives Advanced Plus Real-World Protection

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AV Comparatives Advanced Plus Performance

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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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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.

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

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

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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

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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

10.28.26

How many devices can connect to a home router safely?

Phones, laptops, TVs, cameras, speakers, game consoles and smart appliances can quietly turn one home Wi-Fi network into a crowded digital neighborhood. Counting those connections is useful, but “never exceed 50 devices” is not a universal security rule. Some consumer routers struggle well before that point, while newer or higher-capacity systems may support more.

The safer approach is to know your router’s documented capacity, remove devices you no longer use and separate less-trusted smart gadgets from the phones and computers that hold your most sensitive data.

Is 50 devices the maximum for a home router?

No single number applies to every router. Capacity depends on the model’s processor, memory, Wi-Fi generation, radios, available addresses and the amount of traffic each device creates. Linksys explains that consumer-grade routers often handle about 20 to 50 devices comfortably, while higher-end equipment may manage more.

Think of 50 as a review point—not a guaranteed safe maximum. A group of idle sensors creates a different load from several security cameras uploading continuously while family members stream video and join work calls. Check the manual or manufacturer’s support page for your exact model, including any per-band or per-node limit.

Does connecting more devices increase security risk?

Every connected device adds software, credentials and communication paths that require attention. An old camera with abandoned firmware or a generic streaming box with hidden malware may create more risk than several current, well-supported devices.

The threat is real: the FBI warned that the BADBOX 2.0 botnet consisted of millions of infected connected devices. Criminals used compromised home-network products as backdoors and residential proxies for malicious activity. More devices do not automatically cause a breach, but a larger inventory gives you more products to update, monitor and eventually retire.

How do you know whether your router has too many devices?

Open the router’s official app or administration page and review the connected-client list. Count wired and wireless equipment, including forgotten printers, watches, streaming sticks and old phones. Then watch for signs that the router or Wi-Fi radios are overloaded:

  • New devices repeatedly fail to join the network.
  • Smart devices drop offline or respond slowly.
  • Video calls stutter when cameras or streaming services are active.
  • The router reboots, overheats or requires frequent manual restarts.
  • One Wi-Fi band or mesh node carries most of the clients.
  • Unknown devices appear in the client list.

Performance problems do not always mean you reached a hard device limit. Weak coverage, interference, outdated firmware, slow internet service or one bandwidth-heavy device can produce similar symptoms. Test during normal peak use before buying new equipment.

Should smart devices use a separate Wi-Fi network?

Yes, when your router supports secure isolation. NSA guidance recommends segmenting a home network into primary, guest and IoT networks. This keeps less-secure smart devices from directly communicating with the phones and computers you trust more.

A guest network is the simplest option on many routers, but confirm that it blocks access to the primary network. Some smart-home products need local communication with a phone, hub or speaker and may not work when fully isolated. In that case, use the manufacturer’s approved setup or a properly configured IoT network rather than disabling security broadly.

Which devices belong on each network?

  • Primary network: Personal phones, laptops, tablets and trusted work devices that store sensitive information.
  • IoT network: Cameras, TVs, speakers, thermostats, appliances, plugs and other supported smart products.
  • Guest network: Visitors’ phones and temporary devices that need internet access but not access to local files or printers.
  • Wired connection: Stationary, high-traffic devices such as desktops, game consoles, TVs or network storage when practical.

How can you reduce the number of risky connections?

  1. Inventory every client. Record the device name, owner, model, network and last known update.
  2. Remove unknown equipment. Block unfamiliar clients, then change the Wi-Fi password if you suspect unauthorized access.
  3. Disconnect what you no longer use. Retire old phones, abandoned smart devices and duplicate streaming products.
  4. Update the router and devices. Enable automatic firmware updates when available and replace unsupported equipment.
  5. Separate the network. Move IoT and guest devices away from the primary network while preserving only the access they need.
  6. Use strong credentials. Give the router administrator account and each Wi-Fi network a different, long password.
  7. Recheck monthly. Review the client list after visitors, purchases or device replacements.

The FTC recommends checking every device connected to the router, changing default credentials, using two-factor authentication and disconnecting older equipment. It also advises keeping device firmware and companion apps current.

When should you upgrade the router or add access points?

Upgrade when the router no longer receives security patches, cannot use WPA2 or WPA3, lacks guest or IoT isolation, or cannot support your normal household traffic reliably. If coverage is the problem, a well-placed access point or mesh system may help more than simply adding a second router. Avoid creating an unmanaged second network that you forget to patch.

Managing device count makes you safer by revealing forgotten hardware, reducing unpatched entry points and limiting what a compromised gadget can reach. Start today: open your router’s client list, name every device and isolate smart products from sensitive computers. The goal is not an arbitrary number—it is a network you can identify, update and control.


How to protect your devices, passwords, and online accounts while traveling

Traveling is fun. Losing access to your email, bank account, or phone while traveling? Not so much. Whether you’re heading out for a weekend trip or flying internationally, your devices carry a lot of sensitive information: photos, passwords, banking apps, work files, travel confirmations, and personal messages. A few simple cybersecurity habits can help protect […] Read More»

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