All of the following promote the sharing of information EXCEPT?

The correct answer highlights a concept in information security management related to declassification and sharing. Automatically declassifying information that has been shared undermines the protection of sensitive data. This process can lead to unauthorized disclosure of information that may still require protection due to its sensitivity or potential impact on national security.

In contrast, the other options listed facilitate the sharing of information. Collaborative platforms enhance communication and data exchange among users, often increasing the efficiency of information sharing. Inter-agency communication agreements lay the groundwork for formalized sharing protocols between different organizations, enabling smoother collaboration and access to necessary information. Regular training sessions on information sharing policies educate personnel on the protocols and importance of sharing information while respecting confidentiality and security requirements, thereby promoting a culture of responsible information sharing.

Thus, the option pertaining to automatic declassification stands out as it directly contradicts the principles that encourage careful and secure sharing of information.