Are pump and dumps legal today?

Are pump and dump schemes still a viable and legal practice in the cryptocurrency market today? With the rise of decentralized finance and the increasing popularity of digital assets, have regulators clamped down on these manipulative tactics, or do they still exist in the shadows, luring unsuspecting investors into false promises of quick profits? As an investor, it's crucial to stay informed about the legality and ethics surrounding these schemes to protect yourself from falling victim to their deceitful practices.