Twitter's former security chief told the US Congress that there was "at least one agent" of China's intelligence service on the social network's payroll and that the company knowingly allowed India to add agents to the company's list as well, potentially giving those countries access to give sensitive data. about users. these were among the disturbing revelations of Peiter “Mudge” Zatko, a respected cybersecurity expert and Twitter whistleblower who appeared before the Senate Judiciary Committee to outline his allegations against the company. Mr Zatko told lawmakers the platform was plagued by weak cyber defenses that left it vulnerable to exploitation…