Sentence examples similar to impenetrable password from inspiring English sources

In a world where hackers are merely looking to pluck "the low hanging fruit," good security is less about being impenetrable and more about picking better passwords.

Impenetrable Web sites.

Neither defense looks impenetrable.

"It's impenetrable".

The city seemed impenetrable.

Her will seemed impenetrable.

Impenetrable explanations?

He vivifies impenetrable privacies.

The thicket can be impenetrable.

I thought it was impenetrable".

Mannered utterance often turns impenetrable.