Prime Minister Cameron said that the UK would pursue banning encrypted messaging apps if the Intelligence was not given access to the communications. The British Government is evaluating to ban some Online Messaging Apps that could not allow law enforcement investigation, including the popular Snapchat and WhatsApp. According to US officials, ISIS members are encrypting their communications and taking steps to avoid the US surveillance. European politicians are demanding that Internet companies like Google and Facebook provide support Intelligence agencies by providing information about peoples online activities.”]
Source: https://securityaffairs.co/wordpress/32146/intelligence/uk-wants-ban-messaging-apps.html

