Secure Data Exchange in Provision of Web Services

ICT systems commonly used in communication and web services may be successfully attacked, which may result in unauthorize d access to data or taking control of the attacked system. One of the sources of the p roblem is faulty software, and the faults arise from programming errors or incorrect c onfiguration of applications used. There are a number of threats to secure provision o f web services. Already known methods of counteracting undesired phenomena do not offer permanent solutions; however, there are ways allowing for increasing our security on the Internet. This paper is aimed at presentation of significant threa ts to the security of web services and of possible improvements to be made in this are a, which is important when e-services are ever more popular and when we are fa cing more and more successful attacks on IT systems.