Question $4$ of $25$

Diffie$-$Hellman Key Exchange $($DHKE$)$ is susceptible to Man$-$In$-$The$-$Middle $($MITM$)$ attacks because:

Answer options

$1.$

A third party is needed to complete the DHKE protocol

$2.$

The shared secret combines one party's private key with another's public key

$3.$

The public key is broadcast over an insecure channel

$4.$

Not just one but two public keys are available to an attacker who wishes to recover the private key