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The CFO of Skillset.com reset his password to include 12 characters, including upper case, lower case, numbers and symbols. Although the password is meaningless and cannot be found in any dictionary, he can remember it well and does not require to write it down. He changes his password every month and is well aware of his surroundings, i.e. he ensures there is no one behind him when he types in the password. Also he never discloses his password to anyone. One day though, he found out that someone has used his password to logon to the system and modified the payroll file. What attack might the attacker have used to gain access?

Social Engineering

Shoulder Surfing

Dictionary Attack

Replay Attack

Explanation

M2-T13-Password Attacks and Countermeasures

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