Question

__________ involves the passive capture of a data unit and its subsequent retransmission to produce an unauthorized effect: Disruption Replay Service denial

Answer 1

Answer: Replay

Explanation:

Replay is a form of attack on cyber security/network security. In this form of attack, a secure response over a network is delayed and resent, creating a space to direct the user or the person who made the request to do the attacker’s bidding.

This form of cyber security threat is difficult to recognize because it uses the encryption of the initial sender and contains similar wording to the valid response. For example, a secure packet of information containing details of a payment can be intercepted, changed to the hacker’s chosen name/account number then resent to the recipient.

Answer 2

Answer:

Replay

Explanation:

Security attacks are a real and dangerous threat in our modern world. These allow others to obtain our information and leave us vulnerable. Security attacks can be classified in two groups. Passive attacks are those that relate to spying or monitoring transmissions. On the other hand, active attacks involve the modification of the data or the creation of false information. Replay belongs to the category of active attacks.