By continuing to use this website, you consent to the processing of data about you by the Cancer Research UK Convergence Science Centre in the manner and for the purposes set out below. You can set your preferences and details of how to do this are outlined below.

What is a cookie?

A cookie, also known as an HTTP cookie, web cookie, or browser cookie, is a piece of data stored by a website within a browser, and then subsequently sent back to the same website by the browser. Cookies were designed to be a reliable mechanism for websites to remember things that a browser had done there in the past, which can include having clicked particular buttons, logging in, or having read pages on that site months or years ago.

Cookies cannot carry viruses, and cannot install malware on the host computer. Tracking cookies and especially third-party tracking cookies are commonly used as ways to compile long-term records of individuals' browsing histories.

Other kinds of cookies perform essential functions, for example, authentication cookies are the most common method used by web servers to know whether the user is logged in or not, and under which account.

Users have the opportunity to set their devices to accept all cookies, to notify them when a cookie is issued, or not to receive cookies at any time. The last of these means that certain personalised features cannot then be provided to that user and accordingly they may not be able to take full advantage of all of the website's features.

Further information about managing cookie preferences is provided below.

How does the Cancer Research UK Convergence Science Centre use cookies?

Site functionality cookies

These cookies are necessary for the website to function and cannot be switched off in our systems. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. The cookies we use are outlined below.

You can set your browser to block or alert you about these cookies, but some parts of the site will not then work. These cookies do not store any personally identifiable information.


The _cfduid cookie is used by the CloudFlare service to identify individual clients behind a shared IP address and apply security settings on a per-client basis.


For example, if the visitor is in a coffee shop where there are a bunch of infected machines, but the specific visitor's machine is trusted (e.g. because they've completed a challenge within your Challenge Passage period), the cookie allows us to identify that client and not challenge them again.


It does not correspond to any user ID in your web application, and does not store any personally identifiable information. See CloudFlare's cookie page for more information. 

Analytical cookies

This site does not use analytical cookies.

Advertising cookies

This site does not use advertising cookies.

How to control and delete cookies

It is easy to manage your cookies by adjusting your browser settings.


All browsers are different, but by adjusting your browser settings you can prevent your browsing from being tracked. Here are links to the help pages on the major browsers, where you can manage your cookie settings:

Via the Advertising Bureau Website

You can manage third-party advertising cookies through the Interactive Advertising Bureau website



We reserve the right to amend this cookie statement. If we do so, we will post notice of the change on our website and you will be deemed to have accepted such changes. This statement was last updated on 2018-05-31.