China will scrutinize online platforms such as social media networks and video-sharing sites to crack down on fake accounts and information as part of its drive to “clean up” the Internet, the country’s cyber regulator said Thursday. The Cyberspace Administration of China (CAC) has announced that it will launch a special two-month operation to target deceptive online behavior, ranging from increasing engagement numbers to paying fake fans and critics. The probe comes against the backdrop of a broad crackdown by regulators across multiple sectors, with officials stepping up oversight of companies across tech, real estate, gaming, education, cryptocurrencies and finance....