An end user reports a computer has been acting slower than normal for a few weeks. During an investigation, an analyst determines the system is sending the user's email address and a ten-digit number to an IP address once a day. The only recent log entry regarding the user's computer is the following:

Which of the following is the MOST likely cause of the issue?

Which of the following supplies non-repudiation during a forensics investigation?

A retail executive recently accepted a job with a major competitor. The following week, a security analyst reviews the security logs and identifies successful logon attempts to access the departed executive's accounts. Which of the following security practices would have addressed the issue?

Which of the following is assured when a user signs an email using a private key?

A penetration tester gains access to a network by exploiting a vulnerability on a public-facing web server. Which of the following techniques will the tester most likely perform NEXT?