Spigot is a form of malware known as adware. While it’s unlikely to damage your Mac, Spigot can still cause slowdown, steal your data, and redirect your browsing traffic to unsafe websites. If your antivirus detects a threat classified as macOS:Spigot-AY, you should follow our steps to run a full system scan and remove it.
If you’re using Avast or AVG, we recommend switching to Intego, which is a more reliable antivirus for Mac.