TWINLOOT hides its attack path inside SharePoint and Teams
Legitimate Microsoft cloud services can be used to steal credentials and move across an organization.
SOURCE · Dark ReadingTHE BRIEF
Researchers describe TWINLOOT as a threat that abuses Microsoft SharePoint and Teams to collect credentials and move between systems while blending into services employees already use every day.
WHY IT MATTERS
Traditional endpoint controls may see familiar Microsoft traffic rather than an obvious malware connection. Once a trusted identity is compromised, the attacker can use permissions and collaboration features as part of the attack itself.
WHO SHOULD CARE
Microsoft 365 administrators, identity teams, SOCs and organizations heavily dependent on cloud collaboration.
WHAT TO DO NOW
- Review unusual SharePoint access, Teams invitations and consent activity.
- Require phishing-resistant MFA for privileged users.
- Limit standing privileges and investigate impossible or abnormal access patterns.
VERIFICATION NOTE
Source basis: Dark Reading reporting. The practical controls are SecBriefs assessment based on the described cloud-native behaviour.
SecBriefs adds context and practical guidance. Reporting remains credited and linked to the original publisher.