 Repeat-infringers risk intermediate technical measures such as bandwidth reduction, protocol blocking and, in a worst-case scenario, temporary access suspension.The content industry has gained the co-operation of internet service providers (ISPs), asking them to provide subscriber information for IP addresses identified by third parties as engaged in copyright infringement.The content industry's proposal for internet service providers to throttle, temporarily suspend, or disconnect Internet access to a subscriber who had received three warning letters of alleged copyright infringement was initially known as "three strikes", based on the baseball rule of "three strikes and you're out".