OTTAWA (Nov 28): The potential threat posed by the rapid development of artificial intelligence (AI) means safeguards need to be built in to systems from the start rather than tacked on later, a top US official said on Monday.

"We've normalised a world where technology products come off the line full of vulnerabilities and then consumers are expected to patch those vulnerabilities. We can't live in that world with AI," said Jen Easterly, director of the US Cybersecurity and Infrastructure Security Agency.

"It is too powerful, it is moving too fast," she said in a telephone interview after holding talks in Ottawa with Sami Khoury, head of Canada's Centre for Cyber Security.

Easterly spoke the same day that agencies from 18 countries, including the US, endorsed new British-developed guidelines on AI cyber security that focus on secure design, development, deployment and maintenance.

"We have to look at security throughout the lifecycle of that AI capability," Khoury said.

Earlier this month, leading AI developers agreed to work with governments to test new frontier models before they are released to help manage the risks of the rapidly developing technology.

"I think we have done as much as we possibly could do at this point in time, to help come together with nations around the world, with technology companies, to set out from a technical perspective how to build these build these capabilities as securely and safely as possible," said Easterly.