Meta on Thursday said it's taking legal action to tackle scams on its platforms by filing lawsuits against what it calls deceptive advertisers based in Brazil, China, and Vietnam. As part of the effort, the advertisers' methods of payment have been suspended, related accounts have been disabled, and the website domain names used to pull off the scams have been blocked. Concurrently, the social media giant said it has also issued cease and desist letters to eight marketing consultants who advertised the ability to bypass its ad policy enforcement systems. This included fake "un-ban" or account restoration services and renting access to trusted accounts so as to help clients bypass its controls. At least three advertisers, two from Brazil and one from China, were found to engage in…