Final answer:
The dangerous aspect of Enterprise 2.0 applications that enable close collaboration is concern about security. It raises risks of cybercrime, privacy loss, and increased vulnerability to attacks especially as digital activity rises and technology becomes more integral to critical infrastructure.
Step-by-step explanation:
A dangerous aspect of Enterprise 2.0 applications that allow close collaboration by increasing data sharing is concern about security. The use of these applications indeed fosters greater data sharing and collaboration, but at the same time, it raises significant issues related to security. As organizations and individuals increase their digital footprints through increased online activity, their vulnerability to cyber threats such as cybercrime, cyberwarfare, loss of privacy, and data breaches also increases.
These concerns are compounded by the fact that as technology becomes more integrated into essential services and infrastructure, the potential damage from technological failures or targeted attacks becomes more severe.
Issues such as the misuse of data, infringement on individual privacy, and the added vulnerability created by technological dependence can lead to a potential mismatch between human cooperation and technology's ability to change our world. This situation is especially dangerous considering the risks associated with critical infrastructures such as nuclear power plants which can have catastrophic consequences in case of failure or targeted attacks. Therefore, while collaborative applications improve productivity and communication, they must be designed and implemented with stringent security measures to protect against these risks.