Santa Clara County has filed a lawsuit against Meta Platforms, accusing the tech giant of violating California's false advertising and unfair business practices laws. The legal action alleges Meta profited from ads promoting scams across its Facebook and Instagram platforms. Meta traded at $598.86 today, down 1.8 percent following the news, reflecting market reaction to the regulatory scrutiny.

The lawsuit claims Meta's ad-driven business model allowed fraudulent schemes, including cryptocurrency investment scams and phishing attempts, to proliferate unchecked. These advertisements allegedly targeted vulnerable users, causing financial harm across the county. County officials assert Meta failed to adequately vet advertisers and remove deceptive content, despite receiving numerous reports and being aware of the widespread scam activity on its platforms.

This legal challenge adds to a growing list of regulatory pressures facing Meta. The company has previously faced fines and investigations globally regarding data privacy, content moderation and anti-competitive practices. Such ongoing legal battles introduce operational overhead and can impact investor sentiment, particularly concerning the long-term stability of Meta's core advertising revenue.

The county seeks monetary damages, civil penalties and injunctive relief, aiming to force Meta to implement more robust ad screening and content moderation policies. Such mandated measures could increase Meta's operating costs and potentially reduce its advertising inventory, impacting revenue growth. This introduces duration risk for Meta's business model, as bond investors assess the long-term predictability of cash flows during evolving regulatory landscapes and potential legal liabilities. The regulatory burden can also widen credit spreads for the company's debt, reflecting higher perceived risk.

Meta is expected to report its second-quarter earnings in late July, where executives may address the lawsuit and its potential financial impact. The legal proceedings will continue through the Santa Clara County Superior Court, with initial hearings likely to be scheduled in the coming months.