Galvanic corrosion occurs when two different metals are electrically connected in the presence of an electrolyte (like water with salts). The more reactive metal (anode) corrodes faster, while the less reactive metal (cathode) is protected.Nature - It’s an electrochemical process where metal atoms lose electrons (oxidize) and dissolve into the electrolyte.Conditions for OccurrenceTwo dissimilar metals must be in contact.There must be an electrolyte (like moisture, seawater).There must be an electrical connection between the metals.This type of corrosion is common in plumbing, marine environments, and anywhere metals are joined and exposed to moisture.