Piracy is a real concern, and authors are increasingly using technology to protect their intellectual property, such as anti-copying devices, access control, electronic envelopes, proprietary viewer software, encryption, passwords, watermarking, fingerprinting, metering, and monitoring of usage.
Rights management: WCT protects information identifying the work, author, and owner, mandating legal protection and remedies against its removal or alteration, and against circumvention of effective technological measures.
Anti-circumvention: SA follows treaties and forbids the circumvention of technologies designed to protect copyright works.
The EU: Copyright Directive – members must provide adequate legal protection against dealing in products and services that are designed for circumvention.
In US: DMCA (Digital Millennium Copyright Act) takes this even a step further: both the circumvention-enabling acts and circumvention enabling devices are prohibited. There are a number of case studies in textbook p 340 - 342