The Spanish National Securities Market Commission (CNMV) has identified violations in the social media content of nearly 100 crypto investment influencers. Approximately 10% of these influencers were found to have breached regulations by failing to disclose conflicts of interest, providing direct investment advice, and offering personalized investment consultations without proper licensing. The CNMV warned that those who do not comply with rectification requirements may face financial penalties. This review covered promotional content related to Bitcoin and other crypto assets, conducted in accordance with the EU's MiCA Regulation.