On 16th March 2020, Malaysia Prime Minister has urged the citizens to stay at home due to Movement Control Order (MCO) for 2 weeks periods and it was subsequently being extended until 3rd May 2020. The purpose of MCO is in virtue to cut the chain of Covid-19 virus that have infected thousands of Malaysian and caused number of deaths. Required: Critically discuss how Internet of Things (IoT) in Industry Revolution 4.0 (IR 4.0) has brought a big impact during the MCO periods.