The Lynx developers would turn the question around. Lynx is considered more secure due to its built in dis-incentives.

By removing the target from its back, bad actors have a greater incentive to involve themselves with projects that might yield profitable results. Lynx is not a profitable target for bad actors. Because Lynx lacks incentives for mining, those that remain involved are interested in the greater effort of supporting and building a platform to drive data storage for Logware. The business rules that Lynx uses are very similar to Bitcoin, yet the incentives to attack it are missing. We believe this makes Lynx more resilient and secure.