No news is good news
Not hearing about a situation suggests that nothing bad has happened.
CAN YOU ACE THIS QUIZ ABOUT “COMPLIMENT” VS. “COMPLEMENT”?
Idioms and Phrases with no news is good news
Having no information means that bad developments are unlikely, as in I haven't heard from them in a month, but no news is good news. This proverbial phrase may have originated with King James I of England, who allegedly said “No news is better than evil news” (1616).