If you run a public routing node I'd estimate your risk is losing money because you don't know what you are doing, not because you are going to be hacked.

On-chain Fees: Opening and closing costs may exceed routing revenue.

Rebalancing Costs: Fees paid to move liquidity can outweigh earned fees.

Forced Closures: Unilateral closes trigger high-priority on-chain transaction costs.

Sweep Fees: Recovering funds from closed channels requires additional on-chain payments.

Hardware Costs: Initial purchase and eventual replacement of storage and components.

Electricity: Continuous power consumption for 24/7 node uptime.

Penalty Transactions: Losing all channel funds by broadcasting outdated states.

Opportunity Cost: Locked bitcoin cannot be deployed in higher-yield activities.

Negative Spreads: Setting outbound fees lower than the cost of inbound liquidity.

Darth may be a prick but he knows his shit when it comes to Lightning. I'd definitely at least throw a glance at his guides if you are thinking about running a public Lightning node.