System and method for providing a secure computational environment

Approaches for providing a secure computational environment are disclosed. In certain implementations, a secure computational environment may be provided by: limiting exploitable or potentially exploitable sub-components in software components; replacing software components with corresponding known-good software components without regard to whether the software components have been compromised or potentially compromised; combining different information to be transmitted into different slices of a data packet and/or encrypting the slices using different cryptographic schemes; processing a data packet having data slices associated with different information that are encrypted using different cryptographic schemes; securing information using data packets having headers that start at different positions within a data packet with respect to other data packets; processing data packets having headers that start at different positions within a data packet with respect to other data packets; or utilizing other approaches.