Network security devices are designed to safeguard networks and data by controlling traffic, detecting threats, and enforcing security policies. They ensure confidentiality, integrity, and availability of information while preventing unauthorized access and cyberattacks ( ). Key functions include:
Network security devices can be hardware-based, software-based, or cloud-based, depending on organizational needs ( ). They may be standalone appliances, integrated into routers or servers, or delivered as virtual/cloud solutions to protect modern hybrid networks ( ).
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