There is spyware for mac, but not not nearly as much as there is for windows.
Spy ware is malware that records your actions on your computer and reports them to the malware's owner. No reputable merchant site will use spy ware.
no
No.It's illegal to use spy ware on ANY phone,even your own.
these might be because of many reasons. Not properly installed, Out dated spy ware Or your system might not like such spy to enter inside its home :P
they make a divice
yes
Spy ware can cause problems with installing anti-virus programs. Spy ware can cause system files to become corrupted. When files become corrupted, the install program cannot access the files it needs in order to install the program.
AdWare and SpyWare
Yes< of course. Expecially now, because number of mac computers is growing and number of viruses for Mac too. I bought a ProteMac NetMine soft(http://www.protemac.com/netmine/) and can be not at all maybe but protected from viruses a d internet attacks)
log in there icloud
AdAware SE is a good one.
No, not yet. They do get a very low percentage of malware/spy-ware tho. It's rare but does happen. So you should still use a (free) malware/virus program just to be safe. Mac's can still pass on virus's to Windows machines so most Mac Malware programs do search Mac files for Windows Virus executable's.