No, domain flipping—the practice of registering, buying, and subsequently reselling domain names for a profit—is completely legal. However, domain flippers must navigate strict legal boundaries; registering trademarked brand names deliberately to extort corporations (a malicious practice known as cybersquatting) violates the Uniform Domain-Name Dispute-Resolution Policy (UDRP) and the Anticybersquatting Consumer Protection Act, which can result in legal penalties and the forfeiture of the domain.