Definizione e Significato di "careless talk costs lives"

What is the origin of the proverb "careless talk costs lives" and when to use it?

The origin of the proverb "careless talk costs lives" can be traced to wartime propaganda, particularly during World War II, where it was used to warn people about the dangers of sharing sensitive or secret information. The proverb emphasizes the idea that thoughtless or casual conversation can have serious and even deadly consequences. It serves as a reminder that words carry weight, and one should be mindful of what is shared, especially in risky or sensitive contexts.