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Bill (a hacker) infects Erica's computer at ABC with a virus through a phishing email. After gaining access to Erica's computer, he realizes that she does not have the type of sensitive information he's looking for. However, she has a document containing contacts for services she might need (pizza delivery, plumbing, electricity etc). He edits this, and saves his contact phone number as "Mark- affordable IT services". Soon enough Erica calls Mark to complain about the virus on her computer, inviting him to fix it. What has Bill done in this scenario?

Piggybacking

Reverse Social Engineering

Malware propagation

Social Engineering

Explanation

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