Microsoft Traces On-Premises SharePoint Exploits to China

But Hacking Groups of All Stripes Now Have Access to Exploit Code, Researchers Warn Microsoft said an attack campaign targeting zero-day vulnerabilities in on-premises SharePoint servers appears to have begun by July 7, tied to three Chinese hack groups. With proof-of-concept exploit code now in the wild, security experts said hackers of all stripes have joined the fray....