Answer:
Replay
Explanation:
A replay attack is an attack on network in which there is malicious or fraudulent repetition or delay in transmitting valid data. This is done by an originator who initially obstructs data before re-transmitting it.
Replay attack helps hackers to have access to information stored and protected on a network.
Hackers uses replay attack to duplicate transaction and withdraw money from people's account.
Replay attack is also known as playback attack, it is a cyber attack.