As a new technology, cloud computing brings a change to business models and ways of working and provides convenience to the way that people work, study and life. User data of cloud computing are stored in the "cloud". The loss of data and the disclosure of privacy will give users a significant loss, so that people are increasingly concerned about its security. The industry of cloud computing has a huge market growth prospects, but compared to other security products, cloud computing access risks exist in the data integrity, data recovery, and privacy, and risks of safety assessment in electronic services, business compatibility and third-party audit regulations.

For logistics and transport in digital manufacturing environment security status quo, study and proposed transportation security risk evaluation index system; using whitening weight function design specific transportation security risk assessment model; verified by an example, that the evaluation method is more scientific and accurate comprehensive evaluation transportation security situation, with the characteristics of the feasibility and operability.