The phrase "impenetrable security" means that something is extremely difficult or impossible to breach or break into. It refers to a high level of protection that is able to ward off unauthorized access or attacks. Full definition
Breaking In stars Gabrielle Union as Shaun Russell, a desperate mother trying to break into a home with impenetrable security where her two children are being held hostage. (ebony.com)
Breaking In stars Gabrielle Union as Shaun Russell, a desperate mother trying to break into a home with impenetrable security where her two children... Read More (ebony.com)
We understand the importance of impenetrable security. (renttrack.com)