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Cookies

What is a cookie?

It’s a text file with a small bit of information in it, which a server downloads onto your computer, tablet or phone when you visit a website. Then you can be recognised when you come back, or when you visit another site which recognises that cookie.

Different types of cookies do different things. Some let you navigate between different pages on a website. Some remember your website preferences. Some give you adverts tailored to your interests. And some measure how many sites or which ones you visit. Session-based cookies sit on your device while you're on a website then expire once you shut your web browser. Persistent cookies stay on your device for longer, then automatically expire.

How do we use them?

The law says we have to give you details about the cookies we use and why we use them. We also have to have your consent to use them. So we've developed a system of classifying the different types of cookies we use on our websites, or that third parties might download to your device via our websites. Our cookie classification system explains how we use the cookies, and also determines how we ask for your consent to use them. We also explain what functionality you lose, if you decide you don't want to have them on your device.

You can select which types of cookies you want to have on your device at any one time. At the footer of every page there is a link to change your cookie settings at any time. Each category is accompanied by a description of what type of actions it performs.

When you visit our websites for the first time you'll see a notice telling you we use cookies, why we use them, and how you can change which cookies you accept. If you enter a website having seen this notice, without making changes to our standard cookie settings, we take that to mean you're happy with the settings as they are. If you change the settings, it means you consent to use the ones you haven't switched off.

Some cookies are 'strictly necessary' for us to give you the online service you've asked for (e.g. when you sign up and log in to areas such as My BT, if you are a residential customer, or My Account, if you are a business customer). We don't ask for your permission to use them as we wouldn’t be able to provide the service of your choice without them.

We also use 'performance' cookies to measure how our websites behave so we can improve our pages and measure how that works for visitors. These cookies don't collect any information that could identify you – all the information is anonymous and doesn’t affect your privacy in any way.

You can't disable 'strictly necessary' or 'performance' cookies and by using our website and online services, you're automatically agreeing to have those on your device.

We also give a list of the individual cookies we use in each category in the 'more about cookies on BT.com' and 'more about cookies on BT Global Services websites' sections.

That's so if you check your internet settings, you know what they are, if you've agreed we can use them. You can always take cookies off your device using your browser settings. But if you do, some things won't work as well. For example, lots of pop up boxes might run the same ads, or you might not be able to get to a page you earlier personalised.

Your browser options let you choose whether to accept, not accept or be warned before accepting cookies. (They're in the advanced preferences section.) Our cookie categorisation is also used in a 'cookie code' developed by the International Chamber of Commerce to help website operators stick to the rules.

Third party sites

Third party sites that you can link to from our websites aren’t covered by our privacy policy, so we urge you to be careful when you enter any personal information online. We don’t accept any responsibility or liability for these sites.

Other companies which advertise or offer their products or services on our website may also allocate cookies to your PC. The types of cookies they use and how they use the information generated by them will be governed by their own privacy policies and not ours.