Abstract: A method of determining that a client is likely engaged in the sending of spam emails via a network node. The method comprises, at the network node, defining a message size threshold and a message sending rate threshold, detecting the opening of Simple Mail Transfer Protocol, SMTP connections between a client device and an email server, identifying messages sent from the client over the SMTP connections which exceed said message size threshold and counting the identified messages to determine a client email message sending rate. The method further comprises making an assumption that the client is engaged in the sending of spam emails if the client message sending rate exceeds said message sending rate threshold.

Abstract: There is provided a method for privacy protection including: identifying an API request being related to a tracking service; generating and sending a predetermined number of initial requests to the tracking service when processing the API requests to the tracking service; storing the initial requests and respective responses related to the initial requests from the API in a database; analysing body objects of the stored initial requests and respective responses and generating a dynamic response recipe on the basis of the analysis; and generating a response including a response body acceptable by the tracking process on the basis of the generated dynamic response recipe.

Abstract: A method of determining that a client is likely engaged in the sending of spam emails via a network node. The method comprises, at the network node, defining a message size threshold and a message sending rate threshold, detecting the opening of Simple Mail Transfer Protocol, SMTP connections between a client device and an email server, identifying messages sent from the client over the SMTP connections which exceed said message size threshold and counting the identified messages to determine a client email message sending rate. The method further comprises making an assumption that the client is engaged in the sending of spam emails if the client message sending rate exceeds said message sending rate threshold.

Abstract: There is provided a method for privacy protection including: intercepting at least part of network traffic from a client device; analysing network traffic data of the intercepted network traffic to identify any elements indicative of a website visitor tracking process; analysing the one or more elements indicative of the website visitor tracking process to identify any tracking fields comprising user specific data; selecting random tracking field data accepted by the website visitor tracking process and replacing the user specific data of the one or more tracking fields with the selected random tracking field data respectively.

Abstract: There is provided a method for privacy protection including: identifying an API request being related to a tracking service; generating and sending a predetermined number of initial requests to the tracking service when processing the API requests to the tracking service; storing the initial requests and respective responses related to the initial requests from the API in a database; analysing body objects of the stored initial requests and respective responses and generating a dynamic response recipe on the basis of the analysis; and generating a response including a response body acceptable by the tracking process on the basis of the generated dynamic response recipe.

Abstract: There is provided a method for privacy protection including: intercepting at least part of network traffic from a client device; analysing network traffic data of the intercepted network traffic to identify any elements indicative of a website visitor tracking process; analysing the one or more elements indicative of the website visitor tracking process to identify any tracking fields comprising user specific data; selecting random tracking field data accepted by the website visitor tracking process and replacing the user specific data of the one or more tracking fields with the selected random tracking field data respectively.