Jack a malicious hacker wants to break into Brown Co$.\text{'}$s computers and obtain their secret information related to Company's quotations. Jack calls Jane, an accountant at Brown Co$.,$ pretending to be an administrator from Brown Co$.$ Jack tells Jane that there has been a problem with some accounts and asks her to verify her password with him "just to double check our records." Jane does not suspect anything amiss, and reveals her password. Jack can now access Brown Co$.\text{'}$s computers with a valid username and password, to steal the confidential company's quotations.

Identify the attack performed by Jack?

$$ Reverse Engineering

Scanning

Social Engineering

Footprinting