Latest cybersecurity reporting from selected sources.

Microsoft Issuing Emergency Patches to Combat Authentication-Bypassing AttacksHackers have been exploiting a zero-day vulnerability dubbed "ToolShell" in on-premises installations of Microsoft SharePoint to gain remote access, and steal cryptographic keys and data. As Microsoft rolls out patches, experts warn administrators to also rotate keys, to help eject attackers.

Security Researcher Uncovered the Flaw, Which Allowed System TakeoverMicrosoft says it fixed a security flaw in artificial intelligence chatbot Copilot that enabled attackers to steal multifactor authentication code using a prompt injection attack. Security researcher Johann Rehberger said he discovered a way to invisibly force Copilot to send data.

Also: Hacker Sells Data Obtained Through Snowflake AttackThis week, Microsoft deprecated NTLM authentication, a hacker put apparently stolen Snowflake data up for sale, Ticketmaster confirmed its breach, Cisco patched Webex vulnerabilities, pro-Russian hacktivists claimed a DDoS attack in Spain and Kaspersky launched a free virus removal tool for Linux.

Not that we're encouraging anyone to defeat this fingerprint authentication Hardware security hackers have detailed how it's possible to bypass Windows Hello's fingerprint authentication and login as someone else – if you can steal or be left alone with a vulnerable device.…

The massive phishing campaign does not exploit a vulnerability in MFA. Instead, it spoofs an Office 365 authentication page to steal credentials.