Microsoft Stops Providing Advance Threat Notices to Chinese Companies

Microsoft Corp. has curtailed Chinese companies’ access to advance notifications about cybersecurity vulnerabilities in its technology after investigating whether a leak led to a series of hacks exploiting flaws in its SharePoint software. The change, which occurred last month, will limit access for program participants in “countries where they’re required to report vulnerabilities to their governments,” which would include China, according to David Cuddy, a Microsoft spokesperson.