Microsoft Teams Guest Access Could Let Hackers Bypass Some Critical Security Protections

Microsoft Teams Guest Access Could Let Hackers Bypass Some Critical Security Protections

Microsoft Teams Guest Access Sparks Security Concerns Microsoft Teams’ guest access feature, designed to simplify collaboration, may now be opening doors for cyberattacks. Experts warn that the feature could allow hackers to bypass critical security protections, putting businesses at risk of malware and phishing campaigns. Organizations that rely heavily on Teams need to understand the potential vulnerabilities before their next external invite goes out. Image credit: Shutterstock / monticello How Guest Access Creates a Hidden Risk The new Teams functionality allows users to start chats with anyone using just an email address, even if the recipient isn’t already on Teams. While convenient, cybersecurity researchers from Ontinue have flagged this as a serious issue. By joining as a guest, external users depend entirely on the host organization’s security settings, effectively bypassing standard safeguards. Malware and Phishing Threats on the Rise This architectural gap has serious implicatio…