Spotify just painted a big target on Apple's back, and the iPhone maker should worry if antitrust regulators start aiming at it (AAPL, SPOT)

The complaint Spotify filed against Apple with European competition regulators on Wednesday represents a real danger to the iPhone maker.
Spotify's complaint looks legitimate and is similar to those successfully made against Microsoft and Google.
European regulators have been much tougher in recent years in cracking down on tech companies anti-competitive moves than American antitrust regulators.
Should they find Apple guilty of abusing its market power, the company could face big fines and rest