And perfection is what's required in order to have perfect security.

At night we withdrew, and the defenders probably went to sleep with a sense of perfect security.

It is not perfect security, admitted, because the system can decrypt the data itself.

As we know, you could argue there's no such thing as perfect security.

Can you not walk from one end of England to the other in perfect security?

You could have perfect security between points, of course.

Beirutis had it right: There is no such thing as perfect security in today's world.

Her husband had gone to the Plains, yet she, with two infant children, was living there in perfect security.

Thanks to the open slats, he found a perfect security.

Because of the need for perfect security he was doing the systems compatibility analysis himself.