Gehring, Verna V. Chapter 3: Do Hackers Provide a Public Service. The Internet In Public Life. Rowman & Littlefield. 2004-08-01: 47. ISBN 0-7425-4234-3. Ideally, a warez d00d tries to release "0-day warez", copies of commercial software copied, cracked, and re-released on the first day the software is available for retail sale.