From Omerta Wiki
Ignoring these guidelines will have as a result that the chances are high that you won't be spared. Being ignorant is NOT an excuse!
After a punishment you can come to us and tell us it was your brother or partner etc, but that will not change the fact that you broke the rules. We will not undo the punishment/kill because of that. If you are caught multiple times by us, you risk an IP ban. Cheaters and dupers do nothing but upset the game experience for the honest players out there, and we are doing everything we can to get rid of them.
You are duping when you own more than one (alive) account. No matter what you use it for or what the reason of it is. When you get caught for duping your accounts will be removed there is always a 100 % proof for that when it is done , we do not go out and just kill accounts for being on the same IP etc, you better go out and ask yourself why this happened.
It is possible to play from the same ip-adress with your brother/sister friends etc., but you have a higher risk of being recognized as a cheater!
Simply said: Do not interact other than sending messages and having each other in their friends list. This also applies for internet cafes!
Share an IP/location even once and that IP/location is off limits for transfers etc. Transfer etc. on an IP once, and that IP is off limits for playing together.
The only things you can do together when you are on same ip are:
All other interactions are out of limit.
If you play with more people on one account, your account will be killed immediately for account sharing. No matter the rank of your account.
Proxies and Anonymous Surfing
It is not allowed to play on a proxy. If you do your account will get akilled. We also check the use of an open proxy server, and if found one, the open proxy server will be banned.
Consequences for omerta groups and families
Crew may message any account accused of not playing fair and if no satisfactory response is received the account may be frozen until such time as the player can be correctly identified.
To identify a player, crew may ask for an ID when we suspect an account of serious cheating and if none is forthcoming we will consider that to be breach of player's contract with us to 'play fair' and we will take appropriate action.
It is not that hard to find someone else to do a heist etc with. There are a lot of other people to do that with.
It is not allowed to have so called trade or funding accounts. Transfers between players is not a problem but having several accounts owned by others with the sole reason to send you all money they make is not allowed.
There is a special page with information about WAN LAN and WLAN and IP's, called WAN LAN WLAN.