have personally been involved and participated in a series of espionage activities," Wang said in a statement to ASIO in October, Nine reported.

"Once I go back I will be dead," said Wang during an interview with Nine.

What espionage activities did Wang carry out?

Initially, Wang was sent to Hong Kong undercover for a Hong Kong investment firm, China Innovation Investment Limited — the business was a front for the Chinese government to spy on Hong Kong's pro-democracy movement.

While in Hong Kong, Wang said he infiltrated universities and directed cyberattacks and harassment towards pro-democracy participants. He also co-opted media through "buying ads to propagate trends."

He later traveled to Taiwan on a South Korean passport and interfered with Taiwan's 2018 municipal elections. He detailed plans to disrupt the island nation's presidentialvote, which will be held in 2020.

Wang also said he was part of a team that kidnapped booksellers who were selling books that displeased China's Communist Party.

Australia responds

The highly detailed accusations of China infiltrating and disrupting democratic systems in Australia, Hong Kong and Taiwan are "very disturbing," said Australian Treasurer Josh Frydenberg, responding to the claims on Saturday.

The revelations follow former ASIO boss Duncan Lewis' warning on Friday that the Chinese government was seeking a "takeover" of Australia's political system.

However, Prime Minister Scott Morrison dismissed such concerns, saying that national intelligence agencies were on top of any threats.

Inside Germany's new spy HQ In the heart of Berlin Decorated with steel palm trees, the new BND headquarters sits right where the Berlin Wall used to bisect the city. The