The comments published today follow allegations that Chinese hackers gained access to secret designs for a slew of sophisticated US weapons programmes, and stole the blueprints for Australia's new intelligence agency headquarters.
John Suffolk, a former chief information officer with the British government and now head of security operations at Huawei, said he was not surprised by claims of international hacking.
"Governments have always done that," he told the Australian Financial Review, adding that the "harsh reality is every government around the world has a similar strap-line for their security agencies".
"Governments have to really focus on what quiet steps they're going to take, accepting no government will really trust 100 per cent another government, regardless of the laws, the policies and procedures," he added.
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Confirming a Washington Post story, US officials said yesterday that Chinese hackers had breached networks containing designs for an array of advanced US weapons projects, from stealth-fighter jets to missile defence systems.
Beijing has yet to comment on the latest US claims, but called the ABC accusations groundless.
Huawei has been at the centre of cyber-espionage concerns itself, with the US Congress last year raising fears that its ties with Beijing meant telecom equipment supplied by the company could be used for spying.
Congress called for its exclusion from US government contracts and acquisitions.
Australia has also barred the firm from involvement in its new national broadband network because of security concerns.