How trustless and secure are Events? They are part of the consensus as they are generated out of a smart contract code. so in theory they are trustless and secure. But they are not stored on chain or in the state trie, and you would have to sync it again to find the event.
In my mind they are as secure as state, do you confirm?
New evidence: transaction receipt have their own merkle trie in a block https://ethereum.stackexchange.com/a/757/264 Means logs can be found in the recipe tree and is as verifiable as state.