The TCP standard is difficult to attack because an attacker cannot send a false TCP message unless he or she can guess the sequence number of the next message.

Question

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TCP includes a sequence number in its protocol header for each packet, which is used to ensure that data is delivered in order and to protect against duplicate packets. An attacker must guess this sequence number correctly to spoof a packet, making it difficult to launch successful attacks without this knowledge.

The TCP Standard Is Difficult to Attack Because an Attacker