The principle of parsimony, or “keeping things simple,” can definitely apply to cybersecurity. Simple systems are often easier to understand, manage, and secure because there are fewer moving parts that could fail or be exploited. I’m familiar with this based off of the training we had in the Navy related to basic cybsercurity practices. 

For example, a network with clear access controls and minimal unnecessary features is less likely to have hidden vulnerabilities. The benefits are simplicity and easier training for users, plus faster troubleshooting. However, the downside is that oversimplifying might leave gaps where more advanced protections are needed. Security sometimes requires layered defenses, and if those are cut back too much, attackers may find it easier to break in.