Electronic device and control method thereof

An electronic device comprising:

• an input interface;
• a communication interface;
• a memory including at least one command;
• and
• at least one processor connected to the input interface, the communication interface, and the memory and configured to control the electronic device,
• wherein the at least one processor executes the at least one command to be configured to:
• receive a user speech through the input interface,
• identify whether or not the user speech is a speech related to a task requiring a user authorization by analyzing the user speech,
• obtain information on at least one of a place where the electronic device is placed or information on whether another person is present around the electronic device based on determination that the user speech is the speech related to the task requiring the user authorization,
• obtain a question unrelated to personal information for the user authorization based on the obtained information on at least one of a place where the electronic device is placed or information on whether another person is present around the electronic device, and
• perform the task corresponding to the user speech based on a user response corresponding to the question being inputted through the input interface.