This document surveys the security and privacy issues associated with the Internet of Things (IoT), highlighting vulnerabilities in communication technologies such as Wireless Sensor Networks (WSN) and Radio Frequency Identification (RFID). It details various types of attacks, including Denial of Service (DoS) and others that impact data integrity, confidentiality, and availability. The paper concludes by emphasizing the urgent need for improved security measures to mitigate these risks for widespread IoT adoption.