Ransom-seeking hackers are taking advantage of Microsoft flaw, expert warns

A Microsoft logo is seen in Los Angeles on Nov, 7, 2017.

LUCY NICHOLSON/Reuters

Ransom-seeking hackers have begun taking advantage of a recently disclosed flaw in Microsoft’s widely used mail server software, a researcher said late Wednesday – a serious escalation that could portend widespread digital disruption.

The disclosure, made on Twitter by Microsoft Corp security program manager Phillip Misner, is the realization of worries that have been coursing through the security…