Security systems and/or methods for cloud computing environments

Certain example embodiments described herein relate to security systems and/or methods for cloud computing environments. More particularly, certain example embodiments described herein relate to the negotiation and subsequent use of Trading Partner Agreements (TPAs) between partners in a Virtual Organization, the TPAs enabling resources to be shared between the partners in a secure manner. In certain example embodiments, TPAs are negotiated, an algorithm is executed to determine where an executable is to be run, the resource is transferred to the location where it is to be run, and it is executed—with the TPAs collectively defining a security policy that constrains how and where it can be executed, the resources it can use, etc. The executable may be transferred to a location in a multipart (e.g., SMIME) message, along with header information and rights associated with the executable.