Many companies offer a service to notify you when your credit report has changed and will normally charge you between $13 to $30 per month for the service.
Citi offer a service here to monitor all 3 credit reports for $12.95 per month.
Global perspective of an Irish expat travel hacker with a serious case of wanderlust who has visted 60+ countries while living on 5 continents. My passion is travel. WARNING! - may contain foul language, nudity and Irish humour!