Broadband Guide

Internet security

Updated: Monday 14 May, 2012

By Anthony Hill

It's a sad fact that crime and other nasty things exist on the web as they do in the 'real world'. Read the following guide to always ensure your connection is safe and secure...

Internet security packages

With broadband security software you can protect your computer when browsing the web or downloading.

To avoid viruses, as well as online threats - including hackers, spyware, spam and identity theft - it's essential that you have a security package installed. Most broadband providers offer free security as part of their packages, but you may sometimes have to pay extra - so check before signing up.

Alternatively, you can purchase software from specialist developers such as McAfee, Norton and AVG. Some anti-virus and spyware protection is available to download free of charge. Always make sure you're fully covered and ensure your package is always kept up to date.

Spam protection

Spam is a generic term for anything that appears on your computer screen without your permission. It usually arrives in the form of pop-up adverts or unsolicited emails.

If you use email, you're probably familiar with spam messages. They come in two distinct varieties - harmless but annoying "junk", and viruses which can be extremely harmful to your computer.

Here are some basic tips to help you avoid getting too much annoying or harmful spam:

1. Try to avoid giving out your email address. When making online purchases or signing-up to websites you can usually opt-out of receiving promotional emails by simply ticking a box on-screen.


2. Never reply to a spam email, or click on any links within it. This will let the sender know your email account is active - then you'll get even more junk.


3. Activate anti-spam settings on your email account. These days, most providers - including Hotmail and Gmail - will filter out junk automatically.


4. Stay safe from viruses by never opening emails or attachments from email addresses you don't know or trust.


5. Don't put your email address on a page anyone can access, like your Twitter or Facebook profile.

Firewalls

A firewall is a computer program that blocks the gateway between two networks - usually your private computer network at home and the public network of the internet.

It blocks the channel to ensure that unwanted visitors from the web can't get into your private network. Your broadband connection is effectively open 24 hours a day, so there's plenty of opportunity for someone to hack inside and access your personal data if they want to.

Installing a firewall makes this virtually impossible, so it's a very important part of securing your internet connection.

Most computer operating systems, including Windows 7, have a firewall included - so all you need to do is make sure that it's never switched off.

Spyware

In simple terms, Spyware is a form of software that hides on your computer and keeps track of whatever you do.

Spyware can range from completely harmless "cookies" - present on most connected PCs and laptops - to malicious spyware designed by criminals to steal your personal information or bank account details.

What's a cookie?

A cookie is a very small file that websites automatically place on your computer, so that your log-in details are "remembered" the next time you visit.

There is now legislation in place to protect you from cookies if you don't want them on your computer. Responsible websites will allow you to opt-out with a single click.

Most of the time, cookies are completely harmless. Using cookies means you can browse the internet without always having to remember your usernames and passwords.

However, you should never save passwords on a public computer, perhaps one in a library or internet cafe.

How does harmful spyware work?

Malicious spyware works in essentially the same way as a cookie, but without telling you what it's doing.

The software is secretly downloaded and records your passwords, codes and website visits. It normally does this by recording keystrokes as you type.

If you notice any of the following symptoms, you should run a scan immediately.

• Your computer might suddenly slow down or start crashing
• You might start seeing more pop-up adverts
• Your browser's homepage might change of its own accord
• Your connection might suddenly encounter problems

How can I protect my computer against spyware?

The majority of UK broadband providers now offer a complete security package with all of their broadband services. Always check before signing-up to make sure you're getting the protection you need.

Alternatively, you can purchase anti-spyware software from reputable providers such as McAfee, AVG or Norton. It is crucial you keep your security software up-to-date at all times, as new threats are appearing all the time.

Keeping kids safe online

The internet is a fantastic resource for children's learning and entertainment. Unfortunately, it is also home to lots of things inappropriate for kids.

And It's not just porn we're talking about. There are websites dedicated to all manner of unhealthy, violent and sometimes illegal practices you wouldn't want the little ones getting involved with.

Most UK broadband providers - including BT, TalkTalk, Virgin Media and Sky - now offer free parental controls which allow you to restrict what your children can access online.

Read our expert guide for more information on keeping children safe online

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