Multiple choice Which of the following is incorrect about the removal of zero-day vulnerability attack? Virtual LAN/IPsec can be used to reduce this attack Deploying an intrusion detection system (IDS) helps to reduce this attack. Locking down wireless access points helps to remove this attack. Maximising protection against wireless-based attacks helps prevent this attack. Applying cryptographic techniques can reduce this attack. Reveal answer Fill a bubble to check yourself E Correct answer Explanation Cryptographic techniques are not useful to reduce this attack.