Here, the author questions ICTs from the social construct viewpoint in direct relationship to the notions of « trust » and of « confidence ». Indeed, how can the use of ICTs in the methods of internal communications build trust within organizations ? Would certain internal values be the foundation for the building of trust ? If, on the one hand, trust appears to be the root of all collaborative work and, on the other hand, ICTs provide to an extent a framework for exchanges, can one conclude that ICTs guarantee their transparency and create interpersonal or « organisational » trust ? What mechanism(s) explain(s) the transition from individual to shared trust ?