Data Security

Internet of Things Security: Locking Down Your Connected Devices

February 15, 2024

Internet of Things Security: Locking Down Your Connected Devices

The Internet of Things (IoT) refers to the billions of internet-connected devices and objects that collect and share data. As more appliances, vehicles, and other items get connected, IoT security becomes increasingly important. Here’s how I can lock down my connected devices and protect my home network.

Securing IoT Devices

The first step is knowing what’s on my network and limiting access. Here are some tips:

Take inventory of connected devices – Catalog all smart TVs, speakers, lights, appliances, security cameras, and other IoT devices. Understanding what’s out there is key.
Change default passwords – Many devices have default passwords that are easily searchable. I should change all credentials to strong, unique passwords.
Update firmware/software – Manufacturers release updates to fix vulnerabilities. I need to regularly check and install available updates.
Enable two-factor authentication (2FA) – 2FA adds an extra layer of security beyond just a password. Enabling it prevents unauthorized access.
Limit permissions – I don’t need to grant all apps, services, and platforms full access. Only enable required permissions.
Turn off universal plug and play (UPnP) – UPnP automatically connects devices to the network. That convenience also presents security risks.

Securing My Home Network

My home network is only as secure as its weakest link. Here are tips to lock down my Wi-Fi router and network:

Change the default router password – Just like other devices, routers have default credentials that should be changed.
Update router firmware – Again, updates fix bugs and vulnerabilities. I should check for router firmware updates monthly.
Use WPA3 encryption – WPA3 is the latest Wi-Fi security protocol and offers the strongest encryption. I need to make sure my router supports it.
Hide my SSID – Broadcasting the network name makes it easy for others to find. Hiding the SSID adds a layer of obscurity.
Enable the router firewall – Router firewalls filter traffic and block unwanted access. This provides an extra line of defense.
Set up a guest network – If I have guests, I should set up a separate guest network so they don’t access my main one.
Monitor connected devices – My router may have an administration page that shows connected devices. Monitoring it lets me identify any unknown ones.

Additional Measures

Here are some other smart home security steps I can take:

VPN router – Using a VPN (virtual private network) router adds encryption to all my traffic. That prevents snooping.
VLAN setup – Virtual LANs let me separate IoT devices from other sensitive devices on my network. This contains threats.
Network monitoring – Tools like intrusion detection and prevention systems watch for suspicious network activity. They send alerts if anything is detected.
Device limits – I can set router limits on how many items can connect. This prevents unauthorized IoT additions.
MAC address filtering – My router can block devices by MAC address. I can whitelist only recognized, trusted devices.

The connected home brings convenience but also risk if I’m not diligent. Taking the right security steps allows me to enjoy my devices safely. Maintaining good habits like updating, complex passwords, and network monitoring helps me stay a step ahead of threats.