When it comes to security, IPv6 has a definite advantage over its predecessor. With built-in IPSec support and improved data integrity, IPv6 provides a more secure basis for Internet communication.
Unlike IPv4, IPv6 allows integrity parameters to be configured, further enhancing its security capabilities.The Internet Protocol Security (IPSec) built into IPv6 at different levels of network architecture offers more robust protection against potential threats than IPv4. IPv4 lacks native security features, but IPv6's built-in security features offer an extra layer of protection.