Description: A security firewall is a system designed to prevent unauthorized access to or from a private network. Security firewalls can be either a hardware firewall (router) or software firewall (firewall software application), or a combination of both. Security firewall history and facts.
| 1951 – First commercially available computer was the Ferranti Mark 1. |
| 1957 – The development of what is now called the Internet started by the Soviet Union. |
| 1969 – ARPANet created by the US Defense Department (now known as the Internet) first went live in October 1969. It used the NCP protocol (Network Control Protocol). |
| 1970 – The world’s first wireless packet-switched network was ALOHAnet. |
| 1972 – ALOHAnet was the first network to connect to ARPANET in 1972. |
| 1974 – First routers – Xerox routers came into operation sometime after early 1974. |
| 1983 – TCP/IP protocol replaced the NCP protocol. |
| 1985 – Wi-Fi technology origins – FCC released several bands of radio spectrum for unlicensed use. |
| 1986 – NSFNET (formerly ARPANet) went online and connected to the CSNET network. |
| 1980’s Late – First security firewall was created in the Late 1980’s. |
| 1991 – Official launch of the World Wide Web for public use by Tim Berners-Lee and colleagues at CERN. |
| 1994 – Carnegie Mellon University built the first wireless Internet network in the world at their Pittsburgh campus in 1994. |
| 1997 – WEP encryption was introduced for wireless security firewalls. WEP encryption is easily cracked within minutes. |
| 2003 – WPA and WPA2 encryption for wireless security firewalls became available in devices in 2003. |
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