Passwords - A secret word or phrase used to authenticate access to a system or service., Encryption - The process of converting data into a coded form to prevent unauthorized access., Asymmetric Encryption - A type of encryption using a pair of keys: a public key for encryption and a private key for decryption., Firewalls - Security systems that monitor and control incoming and outgoing network traffic based on predetermined security rules., MAC Address Filtering - A network security technique that uses the unique MAC addresses of devices to control their access to the network.,

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