It means the original transaction was directed at a contract and that contract initiated one or more messages to other contracts and accounts. An example, would be a transaction sent to a contract that is holding funds, instructing it to release funds to your account. Such a transaction might not have any value attached, only instructions, but the funds that arrive in your account are real.
Such transactions are subject to same rules regarding waiting for confirmations before you are sure, but by the time you read this, if the funds seem like they are in your account, then you can be confident it is basically irreversible.
The actual transaction in your example was indeed sent to a contract, and the contract decided to send its own funds to 0x7AaF70e681F17aae9284dC311431341CB7b64A43.
It's over a day old, so well-confirmed.
In case it isn't clear, contracts run logic when someone sends them a transaction. Among the things they can do is send money where it's supposed to go. Almost everything interesting on Ethereum is a contract. It is probably more technical than you want, but in case it is of interest, the contract can be examined here: https://etherscan.io/address/0xf0cb4ad3b24a5aa73fe1d3604899a2ea86488a75#code. For example, multi-signature wallets and other full-featured/novel-featured wallets are implemented as contracts.
There is nothing obviously suspicious and no economically feasible way to reverse the transaction, so you got paid.
Hope it helps.
