I am under the impression that most people lie when stating their current salary to prospective employers. I recently increased my actual salary by approximately $10K when asked my current salary during the salary negotiation process. Is this expected by recruiters or am I completely off about most people doing this? I'm a little worried that it may cost me the new position but I also don't want to leave my current job for the same money. 

Is it normal to exaggerate the current salary when recruiters ask?