We have no access to anyone's account. Accounts are secure--no one can look at them. Even the IRS will not tell you who claimed your child if someone else did that. The steps to take if someone claimed your dependent are already described in the post directly above your own question.
Additonal information:
https://ttlc.intuit.com/questions/1900655-what-to-do-if-you-suspect-tax-related-identity-theft
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
