Online advertising has exponentially grown over the past 20 years. With this growth, there have been many challenges that the industry had to face, and some are still not fully resolved. Information asymmetry is now present everywhere online, and it is everyone’s duty to think rationally and not believe everything that can be seen on the internet. But it is also the company’s duty to advertise its product transparently and not use any misleading or hidden messages. Rules and regulations already exist, but as shown in examples of Ferrero and Clif Bar & Company class action lawsuits, they are not being fully considered when creating advertisements. Governments and agencies have to be more attentive and protect consumers from false advertising by creating more strict guidelines and regulations, collaborating with online platforms to minimize this problem, and having strong penalties in place. Raising awareness of information asymmetry would lead to lowering the occurrence of information asymmetry in advertising, and companies and customers would experience positive changes.