It develops software intended to protect corporate brands from Internet counterfeiting, fraud, piracy, and cybersquatting. The terms "piracy" and "theft" are often associated with copyright infringement. Lang views the issue as being more of a threat than music piracy. Online Piracy Act protests had proved counterproductive. It was preceded by a period of largely unrestricted trade and widespread piracy. Kidnapping on the high seas in connection with piracy has been increasing. Virtual Console is part of Nintendo's strategy for deterring video game piracy. It provided services such as suppression of piracy and slavery. Battle.net servers include a CD key check as a means of preventing software piracy. Danes and Wends also fought wars due to piracy and crusading. Rajah Brooke was highly successful in suppressing the widespread piracy of the region. The practices of slavery, piracy and headhunting were suppressed but not entirely extinguished. Developers predicted that DRM would induce wide use by music suppliers concerned about piracy. DirecTV transmits programming with encryption to mitigate signal piracy. The Cholas are known to have benefitted from both piracy and foreign trade.