Hotspot:-

          A hotspot is a physical location where people get Internet access using Wi-Fi technology via a wireless local area network, using a router connected to an ISP. Many places offer free Wi-Fi hotspot as a public service, including airports, restaurants and hotels to attract customers.

              Using a hotspot can be a security threat to your personal data. Anyone can set up a malicious hotspot that will unencrypt data sent through it. Another way attackers can access your personal information is to eavesdrop on a legitimate Wi-Fi hotspot and watch for unencypted data being transmitted. Today, most smartphones can be configured to create a Wi-Fi hotspot, allowing computers and tablets to connect to the Internet using the Wi-Fi signal generated by the smartphone.