In $2010,$ an Apple software engineer left a prototype of the iPhone $4$ in a bar. The person who found the phone sold it to the gadget blog Gizmodo for $$5,000,$ who disassembled it and posted its characteristics online. Which of the following cyber security threats best describe this example?

An internal threat due to intentional malicious behavior

An internal threat due to careless behavior

An external threat due to an intrusion

An external threat due to online fake news