OTTAWA—A former top U.S. spy says Canada is prudent to look at defending its political system from cyberthreats and hackers, given what happened recently in the United States.

Michael Hayden, former head of the U.S. National Security Agency and Central Intelligence Agency, says there are ways to make a foreign attack on key Canadian databases more difficult, if not impossible.

The Liberal government plans to ask the federal Communications Security Establishment, the NSA’s Canadian counterpart, to advise political parties and Elections Canada on good cybersecurity practices.

Read more:Canada’s allies racing ahead on boosting cybersecurity, PM told

The disclosure of pilfered Democratic Party emails proved embarrassing to U.S. presidential contender Hillary Clinton when published by WikiLeaks.

U.S. intelligence officials said Moscow led the attack, though Russia has denied involvement.

Speaking after his appearance at an Ottawa conference on disaster prevention, Hayden made it clear he believes Russia was behind the hack.

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