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One of the most common \u2013 and most serious \u2013 security vulnerabilities<\/strong> in communication between and within SAP systems is over-authorized RFC interface users.<\/strong><\/p> Due to historically grown interface architectures, development without a defined concept, and pressure to quickly implement business requirements, they pose a risk from both inside and outside your systems. Often, there are only a small number of SAP users<\/strong><\/a> who are configured across a large number of RFC connections, covering various scenarios, and who – without a clear concept – are usually assigned the default profile “SAP_ALL” right away.<\/p> In this article, you will learn what RFC interfaces are, which connection types exist, and how to analyze and optimize your RFC interface architecture to address security risks.<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t