Microsoft Corp. is investigating reports that attackers are exploiting two previously unknown vulnerabilities in Exchange Server, a technology many organizations rely on to send and receive email. Microsoft says it is expediting work on software patches to plug the security holes. In the meantime, i...

Less than six hours after Donald Trump became the president-elect of the United States, a Russian hacker gang perhaps best known for breaking into computer networks at the Democratic National Committee launched a volley of targeted phishing campaigns against American political think-tanks ...

Less than six hours after Donald Trump became the president-elect of the United States, a Russian hacker gang perhaps best known for breaking into computer networks at the Democratic National Committee launched a volley of targeted phishing campaigns against American political think-tanks ...