sorry but isn't clear..how yu will linked user at address ? someone can usurp me..give my adresse..and claimed my coins.
That should not really happen if you address gets included in the contract.
You will have to trust the Ethereum blockchain and smart contract technology though.
If the smart contract is good and without security problem it will work like that:
1. Your Ethereum address will get all tokens assigned.
2. The tokens will all be "locked" and can't be transferred.
3. The tokens will become "active" and free for transfer over time through "Automatic Mining" (see the contract for details)
4. Ethereum and the contract should ensure that it is only you who can send the tokens to someone else.
That is how I understand it ... just stumbled on it today.
Side note: You will have to pay ethereum fees to transfer the tokens and "use" the ethereum contract.
The creators of the smart contrac thas to pay ethereum fees too.