Explain three specific & major security threats to internet users. in each case, address whether or not the vulnerabilities are operating system software, communications, malware, procedural, or application specific. discuss if any of the selected threats are also meaningful to the internet of things (iot).

Jenny needs to record the names of 30 students, write down the subjects they studied, and note their grades in each subject after the midsemester exams and the end-of-semester exams. she divides the midsemester and end-of-semester information into two separate worksheets, sheet 1 and sheet 2. how will she rename the two worksheets?