There's some money involved if you run a lightning node, but this requires owning bitcoin, so I doubt that's what OP is asking about and what he's able to do at the moment.
How much BTC is needed to run a lightning node? Is that BTC tied up with the node? Is it put at a risk?
And on that risk note, answers in this thread indicate that my transactions are more secure if I have my own full node. Looking in the other direction, my transactions are at more risk when I do not have my own node. Just how much more risk is there?
If I am running a wallet such as Trezor, and I send or receive some BTC, how much risk am I exposed to?
I suspect that if I am using Coinbase, and put in a buy or sell for BTC, the only risk is that the dollar cost of BTC changes while the transaction is being consummated. Is there another risk I am not aware of?