The Comisión Nacional de los Mercados y la Competencia (CNMC), Spain's competition authority, has sanctioned Atresmedia, a major media group, for broadcasting hidden advertising. This practice is considered a breach of competition regulations aimed at ensuring transparency and fairness in advertising.

The CNMC's investigation revealed that Atresmedia failed to clearly disclose certain promotional content, misleading viewers and undermining the integrity of advertising standards. The authority emphasized the importance of clear communication in advertising to protect consumer rights and maintain a level playing field in the media industry.

This decision reflects the CNMC's commitment to enforcing competition laws and promoting fair practices in the market. The fine serves as a warning to other companies in the sector about the consequences of non-compliance with advertising regulations.