In the US the law makes it illegal to 'circumvent a technological measure', defined as: > descramble a scrambled work, to decrypt an encrypted work, or otherwi

In the US the law makes it illegal to 'circumvent a technological measure', defined as: > descramble a scrambled work, to decrypt an encrypted work, or otherwise to avoid, bypass, remove, deactivate, or impair a technological measure, without the authority of the copyright owner where > a technological measure “effectively controls access to a work” if the measure, in the ordinary course of its operation, requires the application of information, or a process or a treatment, with the authority of the copyright owner, to gain access to the work. A sticker doesn't count as a "technological measure".