I looked into some of these services a few years ago, You can actually implement the same identity protection for free.
By placing a "security freeze" on your credit reports through the major credit bureaus, you are automatically notified if someone tries to obtain credit in your name etc..
More information on the process of placing a "credit freeze" through Experian can be found at
https://www.experian.com/consumer/ca...e=FREEZECENTER