WASHINGTON DC, Oct 16 — The Malaysian authorities have arrested a 20-year-old man who the US Justice Department said yesterday ran an Internet hacking ring in Kosovo that provided stolen personal information of more than 1,300 US service members to the Islamic State.

In a complaint unsealed in federal court in Northern Virginia yesterday, the Justice Department alleged that the Kosovar, Ardit Ferizi, hacked into the server of a company based in the United States, stole the personal information and gave it to the Islamic State to use against the service members.

The complaint alleges that Ferizi gave the information to Junaid Hussain, a former leading member of the CyberCaliphate, an Islamic State unit that broke into the US Central Command’s Twitter and YouTube accounts this year. The Islamic State hoped that its supporters in the United States would use the information to attack service members, the complaint says.

Junaid was killed in an American drone strike in Syria in August.

His unit has been credited with the Islamic State’s adept use of social media to recruit fighters and spread propaganda, and his activity was increasingly linked to plots carried out far from the battlefields in Syria and Iraq.

The United States is seeking to extradite Ardit and charge him with providing material support to the Islamic State, the complaint said. — The New York Times