Having purchased credit monitoring/protection services for the past 24 months — and having been the target of multiple identity theft attempts — I feel somewhat qualified to share my experience with readers. The biggest takeaway for me has been that although these services may alert you when someone opens or attempts to open a new line of credit in your name, most will do little — if anything — to block that activity. My take: If you’re being offered free monitoring, it probably can’t hurt to sign up, but you shouldn't expect the service to stop identity thieves from ruining your credit.
Source and Full Story Here: http://krebsonsecurity.com/2014/03/are-credit-monitoring-services-worth-it/