An attack made in response to an attack by the opponents

To attack in response to an attack by opponents.

An attack to the groin area of the body.

(computer security) An attempt to subvert security by recording legitimate communications and repeating them to try to impersonate a valid user.

(netball) A player allowed in the centre third and goal third, but not the shooting circle.

(netball) A player allowed in the centre third, goal third including the shooting circle.

plural of asthma attack

(cryptography) A covert method of decryption exploiting the so-called birthday paradox.

(fencing) An attack consisting of more than one feint.

plural of counter-attack