1.   In addition, the company develops encryption technology that scrambles information transmitted from one destination to another over the Internet, thereby preventing intruders from reading the data.

2.   Inserting a nail into the mated holes secures both sashes in place and prevents an intruder from raising the window.

3.   That did not prevent some intruders from sneaking in.

4.   The union said the doors should be reinforced to prevent intruders from bursting into the cockpit.

5.   Indian security men held onto a rope to prevent any intruders from getting closer to the contestants.

6.   Submarine hatches can only be opened from the inside to prevent intruders.

7.   The guns also fired to the left and right of the post to prevent the intruders from escaping.

8.   This is to prevent intruders from setting fires as open burning is a threat to the environment.