Northwest WorldPerks members can earn 1,500 miles when signing up for one year of proactive identity theft protection from LifeLock and earn 250 miles per monthly enrollment. LifeLock protects your identity and personal information for $10 a month and offers a $1 Million Total Service Guarantee. Call 1-800-LIFELOCK (543-3562) or go to www.lifelock.com and use promotion code NWA16. WorldPerks members receive a 10 percent LifeLock discount. Lifelock also partners with US Airways.