There are plenty of failure modes where you can lose your funds even if your wallet keys are not compromised. Try running a lightning node, make transactions wo

There are plenty of failure modes where you can lose your funds even if your wallet keys are not compromised. Try running a lightning node, make transactions worth more than a few hundred dollars and then leave your node offline for a few days. Or even more simply: ask yourself what happens to your funds if the disk on your lightning node goes bust and you don't have a recent backup.