HeptaSquare (or ■■■■■■■) is either a hacker or a group of hackers who goes by seven squares in ASCII characters (in the player logs, his own logs excluded) to crypt his own IP address(or their own IP addresses).
His actual player name (or their names) is unknown, but they have claimed a lot of CashCows of their own and tend to be selfish regarding those, usually hacking people who steal their CashCows and sometimes claiming them as their own CashCows.
Should he or a member be hacked, the hacking one wouldn't be aware of his identity.
Assumptions about the playstyle of the members tend to think it is either perfectly distributed among the members if it's a crew, or completely offensive if it's a single person.