A notorious brand is a company or product that has gained widespread recognition and notoriety, often for negative reasons. This can be due to controversial marketing tactics, unethical business practices, or consistently poor quality products. Notorious brands are often the subject of public scrutiny and criticism, and their reputation can have a significant impact on consumer perception and trust. Despite their notoriety, these brands may still maintain a loyal customer base, but their infamy sets them apart from other more reputable brands in their industry.