Lauren Price of Maryland filed suit against Facebook today in federal court in San Jose, California, specifically for allowing her and other users' personal information to be siphoned without authorization. The suit asserts claims of negligence and violations of California unfair competition laws, according to Bloomberg.

"This case involves the absolute disregard with which defendants have chosen to treat plaintiff's personal information," Price's lawyers said in her complaint, according to Bloomberg. "Facebook, for its part, knew this improper data aggregation was occurring and failed to stop it, or actively avoided discovering such knowledge in order to profess supposed ignorance."

This legal action comes a day after shareholders sued Facebook for the stock price slump caused by the backlash against the company's failure to safeguard user privacy. The company has lost $50 billion in value this week.