Casper Dik joined Sun Microsystems, Inc. in 1995 as part of the Network Security Group to help secure the internal network of Sun. As Sun is predominantly run on Sun hardware and software, he soon realized that the best way to secure the internal network was to improve Sun's software. After a short stay in Sun Labs, he moved to Solaris engineering, meddling in all things security relevant. His main contributions to the Solaris 10 OS are fine-grained privileges, a.k.a. "Process Rights Management."