In regards to the change applied last night in Web.config, by having put enableViewStateMac=false, I am receiving another error today. Here is the error message:

Invalid viewstate. 
	Client IP: 1.1.1.1
	Port: 2828
	User-Agent: Mozilla/4.75 [de] (Win98; I)
	ViewState: /wEWAwLBiM94ApLXxoMNAqeOtJMP
	Referer: http://www.hyipfuture.com/DataEntryPasswordRecover.aspx
	Path: /DataEntryPasswordRecover.aspx

I changed the IP for the privacy.

When I changed that setting, it was to avoid receiving the "Unable to validate data". But, since this morning, I have seen two situations where I am now receiving two new error messages.

Isn't there a way to completely shut down this validation?