Somewhere, a group is preparing an attack on Bitcoin. It will come around the next big pump. The attackers will have an exponentially large advantage of computing power. If the network isn't compromised, it will be severely damaged.
do you mean market attacks or attacks on bitcoin secrets ...? if that is true, it may not be notified to the public and will not be spread to the ears of other bitcoin users except their groups, if you hinder the pace of bitcoin it might be possible.