Which is better in securing networks? EIGRP or OSPF protocols

Hello! My task is to design a network in a workplace. The company using CISCO Router for my routers, 25 work stations and 3 CISCO Switch. I'm a little bit confuse about routing protocols. I can't decide which protocols I will be using by configuring networks. Maybe you guys give me advice whether i will be using EIGRP or OSPF protocols. Which of the two is the best protocol to secure my network? So that when someone tries to access my network illegally, they could not be able to connect or even access the server.
Help me to decide which of the two is the best!
Thank You looking forward to your answers
