Top Definition
The world's largest non-profit security research group. To preserve the closeness of the group, it is an invite only group. A participant will invite another person in, and by inviting them, they are "vouching" that they trust that person with anything discussed and feel that person can contribute to the team.
w00w00 @R3 |337 |-|@X0RZ
by the1 June 29, 2003

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