But they are both "Sicherheit" since in compound words the main word is the last word. You could say "Ist dein Haus sicher?" and mean "is your house secure" if

But they are both "Sicherheit" since in compound words the main word is the last word. You could say "Ist dein Haus sicher?" and mean "is your house secure" if a burglar is targeting your neighbourhood or "is your house safe" if a storm is passing over it. You can distinguish both cases with context or compound words, but it's not generally done.