The Five Eyes signals intelligence alliance of Australia, the United States, Britain, New Zealand and Canada has warned that disruptive AI-driven cyber attacks targeting governments and businesses could become reality within months, The Guardian reported. In a joint statement, the agencies said AI may improve cyber defence over time but is also accelerating the speed, scale and sophistication of threats. They said frontier AI models could fundamentally change cyber capabilities sooner than expected.

Even if alien civilizations exist, there are clear physical constraints that could keep them from visiting Earth, a researcher said. Carol Oliver of the University of New South Wales’ Sydney campus cited three reasons: the immense distances in space, the enormous energy required for interstellar travel and the potential dangers of Earth’s environment to non-adapted life. She also said the limited reach and short history of human observations make the lack of contact unsurprising.