Security Cleanup: Removing Vulnerable Legacy O365 Teams and RDAP Tools

What Changed

Removed two legacy projects with security vulnerabilities:

O365 DataCSharp Teams CustomConnector:

• Complete C# Teams data ingestion solution using legacy .NET Framework
• Custom connector for Microsoft Teams audit logs and activity data
• Function App-based architecture with Key Vault integration

RDAPQuery Tool:

• Domain registration lookup tool for threat intelligence enrichment
• RDAP (Registration Data Access Protocol) API integration
• Azure Function-based deployment for automated domain investigation

Security Impact (Visibility & Fidelity)

Organizations using these legacy components had exposure to:

• Vulnerable Dependencies: Both projects used outdated .NET libraries with known security vulnerabilities
• Authentication Risks: Legacy authentication patterns potentially susceptible to credential compromise
• Maintenance Burden: Unsupported code paths requiring security patches

This cleanup reduces attack surface by removing vulnerable legacy code paths. Organizations should migrate to supported CCF-based Teams connectors or native Microsoft 365 data ingestion methods.

Affected Files

DataConnectors/O365 DataCSharp/ (entire directory removed)
Tools/RDAP/RDAPQuery/ (entire directory removed)