See https://blog.breez.technology/lightning-btc-iou-62e3a712c913 for instance.
As that post makes clear at the end, if you don't monitor the BTC block chain actively (with an app or by paying a third party you trust to hopefully do it for you), you can be cheated out of your BTC with Lightning.
As that post makes clear at the end, if you don't monitor the BTC block chain actively (with an app or by paying a third party you trust to hopefully do it for you), you can be cheated out of your BTC with Lightning.