Most of us may have heard the term, and know it’s related to security in some way, but do you really know what a firewall is? Traditionally, firewalls were built to keep danger at bay—they were doors (or walls) to block fire from coming into another area—hence the name firewall. When you’re thinking in terms of your online security, modern-day hardware and software firewalls are similar. They act as barriers to prevent unauthorized access to your personal information.
Firewalls are software programs or hardware devices that filter the information coming through your Internet connection to your computer (and all the devices that are connected to that connection). A firewall protects you and your devices by examining each piece of information that flows between your devices and the Internet.
Hardware firewalls, such as those included with some routers, are usually a good first line of defense against outside attacks, and they require little to no configuration. The one down sides of using only a hardware firewall is that it only protects you if you are at home. So if you take your computer to a cafe or on a trip, your device is no longer protected by the home-based firewall.
Fortunately, software firewalls can catch these kinds of threats because they are running on your computer and can take a closer look at the network traffic. This allows them to intercept a malicious program before it leaves your computer.
Now that you know the purpose of firewalls, follow these tips for greater security online:
- Make sure you are using a router that includes a firewall as a first layer of protection
- Use comprehensive security, like McAfee LiveSafe™ service, that includes a two-way firewall that filters both incoming and outgoing traffic, as well as protection for all your devices, your identity and your data
- Turn off file-sharing and printer-sharing features if you don’t need them
- Use common sense, don’t click on links or open attachments from people you don’t know—you could unknowingly be giving them access to your device
- While the bad guys may always be looking to do harm, just remember that we all need to be vigilant about protecting ourselves and our devices, which in turn helps protect everyone else.
Robert Siciliano is an Online Security Expert to McAfee. He is the author of 99 Things You Wish You Knew Before Your Mobile was Hacked! Disclosures.
ROBERT SICILIANO, CEO of IDTheftSecurity.com is fiercely committed to informing, educating, and empowering Americans so they can be protected from violence and crime in the physical and virtual worlds. His "tell it like it is" style is sought after by major media outlets, executives in the C-Suite of leading corporations, meeting planners, and community leaders to get the straight talk they need to stay safe in a world in which physical and virtual crime is commonplace. Siciliano is accessible, real, professional, and ready to weigh in and comment at a moment's notice on breaking news.
- The Guide to Securing Your New Tech Toys
Ho ho ho! It seems that this year, Santa’s sleigh was filled with technology—laptops, smartphones, gaming consoles, etc. Playing with and learning about your new tech toy is fun, but remember to secure your device. It would be a total bummer if your new toy was suddenly compromised by a virus or hacked into. Luckily,
- What is Pharming?
I was surfing on YouTube the other day and found this hilarious video mash-up of Taylor Swift’s song “Shake It Off” and an 80s aerobics video. For a lot of kids today, mash-ups are all the rage—whether it’s combining two videos, two songs, or two words. Mash-ups have even caught on in the tech world. The word pharming
- What is a Remote Administration Tool (RAT)?
Ever felt like your computer was possessed? Or that you aren’t the only one using your tablet? I think I smell a rat. Literally, a RAT. A RAT or remote administration tool, is software that gives a person full control a tech device, remotely. The RAT gives the user access to your system, just as if
- Mobile Malware is Here: Beware!
iPhones, Androids and other smartphones are much more than just a way to call our friends and family and store their phone numbers. Today’s smartphones have become our most personal computer and contain much more than pictures and contacts. They now allow us to access financial data, bank accounts, and medical information from anywhere at
- Protection For Your Shiny New Devices
After Santa heads back to the North Pole, there will be many new devices in the hands of good girls and boys that will be targeted by criminals. With the enjoyment of these cool devices should come top-notch protection for them, as they can be vulnerable to a number of malicious threats. Laptop or PC What should