There are generally several graduation methods: engaging in information security research, information security assessment, technical service and consultation, information security operation and maintenance, or information security product development, promotion or technical support. Depending on the nature of the work, it is possible to go to foreign companies, state-owned enterprises, information security vendors and so on.
The countermeasure technology seems to be better than that of Xidian. However, information security is not necessarily Xidian. Chinese Academy of Sciences and Beijing University of Posts and Telecommunications are not bad.