The Japanese Government minister in charge of major changes to a key cyber security law has admitted he rarely uses a computer.

Key points: Japan is revising its cyber security laws, bringing it in line with the rest of the world

Japan is revising its cyber security laws, bringing it in line with the rest of the world The changes include improved intelligence sharing between government agencies and private companies

The changes include improved intelligence sharing between government agencies and private companies Yoshitaka Sakurada says the challenges in amending law will be met by the whole government, not just him

Yoshitaka Sakurada made the revelation while being questioned by a lower house parliamentary committee.

Asked if he used a computer, Mr Sakurada appeared confident as he replied that he did not.

"I've had my own business since I was 25 years old and I've been instructing my employees and secretaries," he said.

"So I don't touch a computer."

Mr Sakurada is responsible for revising a key cyber security law, part of which will facilitate intelligence sharing between government agencies and private companies.

He said he was confident that cyber security challenges would be tackled by the Government as a whole and that he was blameless.

Independent MP Masahito Imai was stunned.

"I can't believe a person who has never touched a computer is responsible for cyber security," he said.

Mr Sakurada is also the minister responsible for the 2020 Olympic and Paralympic Games.

He is no stranger to controversy.

In 2016, he described comfort women who were forced to work in Japan's wartime brothels as "prostitutes".

He retracted the remarks after the comments were slammed by South Korea's Foreign Ministry as "nonsensical and ignorant".