Al-Qaeda’s online forums are silenced; cyber attack suspected

Al-Qaeda’s main Web forums have been offline for the past 11 days in what experts say is the longest sustained outage of the sites since they began operating eight years ago.

No one has publicly claimed responsibility for disabling the sites, but the breadth and the duration of the outages have prompted some experts to conclude the forums have been taken down in a cyberattack — launched perhaps by a government, government-backed organization or hacking group.

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