Which of the following statements about a hoax are true?
Each correct answer represents a complete solution. Choose two.

What is the most secure way to address an unused Windows service so it cannot be exploited by malware?

What is the first thing that should be done during the containment step of incident handling?

Which of the four basic transformations in the AES algorithm involves the leftward circular movement of state data?

John used to work as a Network Administrator for We-are-secure Inc. Now he has resigned from the company for personal reasons. He wants to send out some secret information of the company. To do so, he takes an image file and simply uses a tool image hide and embeds the secret file within an image file of the famous actress, Jennifer Lopez, and sends it to his Yahoo mail id. Since he is using the image file to send the data, the mail server of his company is unable to filter this mail. Which of the following techniques is he performing to accomplish his task?