During that deployment, he was given a different name for security purposes.

It was also used for internal security purposes between April 1960 and mid-1962.

We weren't allowed to leave our trailers, for security purposes.

Each of them is given their new identity for security purposes.

Once we punched in our access code again, for security purposes.

Usually, anonymous accounts have read access rights only for security purposes.

The Chinese government claims that such measures are necessary for national security purposes.

For security purposes the combination to the lock was not known to any one man on the team.

It was checked three times a week for security purposes.

"But I should think the government would provide them for security purposes, to keep the prisoners quiet."