Dedicated server hosting can be highly secure if proper security measures are taken and maintained. With dedicated server hosting, the server is solely dedicated to your website or application, reducing the risk of security breaches from other users on shared hosting servers. Physical security of the server can also be improved with measures such as secure data centers and access controls. Regular security updates and backups can also help mitigate any potential security risks. However, the level of security largely depends on the hosting provider and the efforts put into securing the server by the website owner.