Universal Pictures and Focus Features produced a film adaptation, which was released on 13 February 2015 and also received generally unfavourable reviews.
The second and third volumes of the trilogy, Fifty Shades Darker and Fifty Shades Freed, were published in 2012.
Researchers also found that other sensitive user information may recorded by 'session replay' scripts, including during account creation, while making a purchase, or while searching the site.
Some of the web's most popular sites could be tracking your every move, a shocking new study has found.
Hundreds of homepages, including those of Microsoft, Adobe and Wordpress, use secret code, called 'session replay' scripts, to monitor your online activity.
The research team found at least one website where the password entered into a registration form was visible in Session Cam's software, one of the six services studied, even if the form was never submitted. Researchers from Princeton University identified four main vulnerabilities resulting from the use of 'session replay' scripts.
This includes credit card information supplied when making a purchase online (pictured) Researchers also found that other sensitive user information may recorded by 'session replay' scripts, including during account creation, while making a purchase (pictured), or while searching the site.
They set up test pages, as well as analysing live sites, to find out what kind of information may be accessible via the tools.
Mr Englehardt and his colleagues identified four main vulnerabilities resulting from the use of the scripts.
The recordings leave users vulnerable to data breaches and leaks.
'This may expose users to identity theft, online scams, and other unwanted behavior.
Hidden strings of data are used to record everything you do while visiting a page, including what you type and where you move your mouse.
This could be used by third parties to reveal everything from credit card details to medical complaints, as well as putting you at risk of identity theft and online scams.
Originally self-published as an ebook and a print-on-demand, publishing rights were acquired by Vintage Books in March 2012.