Our goal is to establish trustworthy software execution on untrusted mobile platforms that have a persistent or occasional network connection to a trusted entity at their disposal. With the ASPIRE solutions, we want mobile software security to become trustworthy by leveraging on the available network connection and developing a layered security approach of strong protections; measurable by developing pratical metrics pased on validated attack and protection models; cheaper by integrating support for the protections into an industrial-strength ASPIRE Framework; more valuable by enabling shorter time-to-markets; and more productive by being more widely applicable