1. You receive a phone call. The caller addresses you by name and tells you that a suspicious amount of money was spent on your credit card and that you must provide your personal information to fix this. You believe this is phishing, what type of phishing is this?

2. You receive a work email from someone claiming that they are from a company overseas working with your company, they attach a file pertaining to work. Their grammar has many flaws in it. You are not sure if this is phishing, what should you do to verify this?

3. Searching through paper files in a company's physical recycle bin is an example of dumpster diving.

4. You and a man who seems like a coworker at your workplace are walking to the same building. Assuming that he actually works there, you type in the passcode to the building, letting both of you in, he watches you type the code in. Which attack could the man have carried out?