Twitter’s former security chief has told the US Congress that there was “at least one agent” of China’s intelligence service on Twitter’s payroll. Key Points: – Peiter Zatko said Twitter was vulnerable to exploitation by “teenagers, thieves and spies”. – Zatko was Twitter’s head of security until he was fired earlier this year – Separately, Twitter shareholders voted in favor of a takeover that Elon Musk now wants to back out of. Peiter “Mudge” Zatko also said Twitter knowingly allowed India to add agents to the company’s list, which could give both nations access to sensitive data about users. The…