El acceso de terceros a la red corporativa es un riesgo que debe gestionarse con un enfoque de Zero Trust y controles estrictos tales como: ✅ Mínimo privilegio y acceso temporal: Solo conceder permisos estrictamente necesarios y revisarlos periódicamente. ✅ Autenticación robusta: Implementar MFA y gestionar accesos con un IAM centralizado. ✅ Monitoreo continuo: Usar SIEM y UEBA para detectar anomalías en tiempo real y gestionarlas como incidentes. ✅ Segmentación y control de datos: Aplicar firewalls avanzados y DLP para evitar filtraciones. ✅ Revisión de proveedores: Evaluar la seguridad de terceros antes de otorgar acceso con servicios de scoring de riesgo o encuestas/checklist.

To keep third parties in check when accessing your network, implement strict oversight and layered controls: Use Least Privilege Access: Grant only the minimum access needed for their role or task. Enforce Strong Authentication: Require MFA and secure credentials for all third-party logins. Segment the Network: Limit third-party access to isolated environments to reduce exposure. Monitor Activity in Real Time: Log and analyze their actions continuously for suspicious behavior. Review Access Regularly: Conduct periodic audits to remove outdated or unnecessary permissions. Include Security Clauses in Contracts: Hold vendors accountable for meeting your security standards.

Enforce **strict access controls** using **least privilege principles** and **zero trust architecture**. Implement **multi-factor authentication (MFA)** and monitor activity with **real-time logging and alerts**. Conduct **regular security audits** and require vendors to comply with **security policies and SLAs**. Segment networks to **limit exposure** and use **secure APIs** for data exchange. Continuously review and revoke unnecessary access to minimize risk.

To keep third parties from accessing your network, you can take several steps. First, ensure that all devices connected to your network have up-to-date antivirus software and firewalls enabled. Regularly review your network's access logs to detect any suspicious activity. Implement strong passwords and multi-factor authentication for all accounts. Limit access to sensitive areas of your network by using role-based access control. Monitor your network for any signs of unauthorized access, such as unusual login locations or times. Finally, educate your users about the risks of third-party access and the importance of following security best practices. Always confirm election information with trusted sources.

By creating Different zones in firewall where we restrict vendor to acces lan environment, we can create zone similar to DMZ zone etc.