Russia Is Suspected to Be Behind Breach of Federal Court Filing System

Federal officials are scrambling to assess the damage and address flaws in a sprawling, heavily used computer system long known to have vulnerabilities.

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China Turns to A.I. in Information Warfare

Documents examined by researchers show how one company in China has collected data on members of Congress and other influential Americans.

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Durham’s Debunking of the ‘Clinton Plan’ Emails, Explained

Trump allies have fixated on a purported message about Hillary Clinton and Russia. John H. Durham, the special counsel, found evidence that it was likely a fake assembled by Russian spies.

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St. Paul Hobbled by Cyberattack, Prompting National Guard Response

Gov. Tim Walz of Minnesota activated the National Guard to help the city of St. Paul address a cyberattack that was detected last Friday.

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China Sees Gaps in U.S. Defenses, Ousted National Security Official Says

Gen. Timothy Haugh, the former head of both the National Security Agency and Cyber Command, gave his first interview since he was fired.

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Microsoft Says Chinese State-Backed Hackers Exploiting Flaws in Attacks

At least two Chinese hacking groups were using security flaws in SharePoint, a popular collaboration software, to breach systems, Microsoft said.

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Gabbard Claims Obama Administration Tried to Undermine Trump in 2016

Democrats denounced a report issued by the Office of the Director of National Intelligence as politically motivated and error-ridden.

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Trump’s Cuts Could Leave the U.S. Exposed Amid a Heightened Threat From Iran

The president has slashed the federal bureaucracy and reoriented much of the national security apparatus to help with his immigration crackdown.

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China Is Hacking Russia to Steal War Secrets

Since the war in Ukraine began, analysts have monitored a series of intrusions aimed at stealing information about weaponry and warfighting.

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As Trump Demands More Military Spending, NATO Allies Reconsider What Counts

The president has long pressed European allies to pay more for their own security. So they may redefine what qualifies as security.

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