Seems even the "experts" are not in agreement. Some web sites have statements such as
Galvanic corrosion refers to corrosion damage that occurs when two different metals are in electrical contact in an electrolyte, where the more noble metal is protected and the more active metal tends to corrode.
Whereas some others have statements such as
This rapid corrosion occurred because of a chemical process called galvanic corrosion. Galvanic corrosion can only occur when two electrochemically different metals are close to one another and also submerged in an electrolytic liquid
Note the word "close" rather than "contact".
So I guess it all depends on which "expert" you are talking to at the time.
