Israel claims the barrier is necessary to prevent Palestinian attackers from entering Israeli cities.

PointGuard was proposed as a compiler-extension to prevent attackers from being able to reliably manipulate pointers and addresses.

Prevent attackers from exploiting services and settings that allow easy access through networks and browsers.

Prevent attackers from gaining access to highly sensitive data.

These newer methods use large salt values which prevent attackers from efficiently mounting offline attacks against multiple user accounts simultaneously.

For the last year, Israel has been building a barrier to prevent attackers in the West Bank from reaching Israel.

No less troubling, it appeared that other police officers had conspired to prevent the attacker or attackers from being brought to justice.

The underlying cliffs were scarped by engineers to prevent attackers from climbing them.

The rump is rounded rather than angular, which prevents attackers coming from behind from getting a firm grip on it.

In several areas where army or police bases were located, tall trees had been chopped off to prevent potential attackers from hiding and to give a clear view.