Security of information in collaborative BIM platforms is crucial particularly for critical projects such as that of government buildings, prisons, and power plants. Inappropriate distribution and loss of sensitive information may potentially lead to physical security threats, financial loss, and loss of trust and reputation. Therefore, this paper identifies the information security requirements of collaborative BIM platforms considering the characteristics related to data security of collaborative BIM platforms through a literature review and as a result, identifies seven components of BIM security, based on which defines three levels of BIM security.

Existing cybersecurity facilitating technologies such as encryption protocols, distributed database technology, and blockchain technology are reviewed to assess applicability to BIM security. This review shows that although the technologies to support BIM security are available in research and on market, they are not customized in existing collaborative BIM platforms to support BIM security. Therefore, two conceptual frameworks are proposed – (1) an encryption strategy-based framework to facilitate secure storage and distribution of BIM and (2) a blockchain-based framework to record BIM changes in a tamper-proof ledger for the non-trusting environment of construction projects. Discussions on cost and functionality are provided, which will be further extended in the future.

协作BIM平台中的信息安全对于至关重要的项目（例如政府大楼，监狱和发电厂的项目）尤其重要。不当分发和丢失敏感信息可能会导致物理安全威胁，财务损失以及信任和声誉损失。因此，本文通过文献综述结合协作BIM平台的数据安全性特征，确定了协作BIM平台的信息安全要求，从而确定了BIM安全的七个组成部分，并在此基础上定义了BIM安全的三个级别。

审查了现有的网络安全促进技术，例如加密协议，分布式数据库技术和区块链技术，以评估对BIM安全的适用性。这篇评论显示，尽管支持BIM安全的技术在研究和市场上都可以找到，但是它们并未在现有的协作BIM平台中定制以支持BIM安全。因此，提出了两个概念性框架-（1）基于加密策略的框架以促进BIM的安全存储和分发；（2）基于区块链的框架将BIM更改记录在非信任环境的防篡改账本中建设项目。提供了有关成本和功能的讨论，以后将进一步扩展。