![]() The first firewall, a packet filter, was introduced in 1988, during the early internet days when computer geeks noticed that their systems were compromised. Like any other technology, the firewall has been updated with advanced security protocols that extend its usability beyond network protection. It checks these data packets against a set of predefined rules. Like a metal detector installed at secure entrance points in buildings, a firewall is a virtual tool that scans data packets before they enter your company’s network. ![]() A firewall is a security mechanism that filters out the bad traffic that tries to access your private network.
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