Incomplete Mediation

• http://www.myinterestpayment.com/userinput &parm1=john&parm2=doe&parm3=2002Jan01
• What if somebody enters http://www.myinterestpayment.com/userinput &parm1=john&parm2=doe&parm3=1002Jan01

This type of error can also be very problematic.