The new economical paradigm, whose most evident effects involve rural regression and soil consumption for residential or industrial purposes, jeopardises the security of the territory and of the local communities. The already collapsing conditions which, commonly, Italian intensely anthropized and historically structured environments face are furthermore dramatically threatened by exceptional meteorological events. The reasons are often various and not automatically related to climate changes, incautious planning solutions or to technical miscalculations which could be the causes of such casualties. Compared to the degradation practices of the systems which have supported the territory artificialization and its utilization for agricultural and forest related productions, safeguarding strategies and hydro-geological protective restrictions act as simple soothing measures. Evaluating territories vulnerability – by means of predisposing precautionary interventions and setting up easily applicable maintenance rules also effective for punctual and limited projects– signifies investing in landscape today to prevent the costs, even economical, of tomorrow.