Tag: Microsoft Security Blog

Microsoft’s guidance to help mitigate Kerberoasting

Kerberoasting, a well-known Active Directory (AD) attack vector, enables threat actors to steal credentials and navigate through devices and networks. Microsoft is sharing recommended actions administrators can take now to help prevent successful Kerberoasting cyberattacks. The post Microsoft’s guidance to…

File hosting services misused for identity phishing

Since mid-April 2024, Microsoft has observed an increase in defense evasion tactics used in campaigns abusing file hosting services like SharePoint, OneDrive, and Dropbox. These campaigns use sophisticated techniques to perform social engineering, evade detection, and compromise identities, and include…

Cybersecurity Awareness Month: Securing our world—together

To help our global cyberdefenders, Microsoft has put together the Be Cybersmart Kit, designed to educate everyone, on best practices for going passwordless, not falling for sophisticated phishing or fraud, device protection, AI safety, and more. The post Cybersecurity Awareness…

Storm-0501: Ransomware attacks expanding to hybrid cloud environments

Microsoft has observed the threat actor tracked as Storm-0501 launching a multi-staged attack where they compromised hybrid cloud environments and performed lateral movement from on-premises to cloud environment, leading to data exfiltration, credential theft, tampering, persistent backdoor access, and ransomware…