The CyberGuard field guide

Cybersecurity,
explained clearly.

A practical dictionary for the language behind digital safety. Start with a question, follow a topic, or browse the full collection.

151 published definitions20 security topicsExamples and source links on every page

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Terms beginning with P

10 definitions found.

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Network Security

Packet Inspection

Packet inspection is the examination of network packet headers, metadata, or payloads to classify traffic and apply monitoring or security policy.

Vulnerability Management

Patch Management

The process of testing, prioritizing, deploying, and verifying software updates.

Ethical Hacking

Penetration Testing

An authorized assessment that tests whether weaknesses can be exploited under agreed scope and rules.

Phishing Social Engineering

Phishing

A deceptive message or site intended to trick someone into disclosing information or taking an unsafe action.

Incident Response

Playbook

A security playbook is a documented set of steps, decision points, and responsibilities for handling a recurring security scenario.

Network Security

Private IP

A private IP address is an address from a range reserved for use within private networks rather than routing directly on the public Internet.

AI Security

Prompt Injection

Instructions embedded in untrusted content that try to redirect an AI system away from its intended task.

Network Security

Proxy Server

A proxy server is an intermediary selected by a client to make requests to another service on the client's behalf.

Network Security

Public IP

A public IP address is an Internet address intended for globally reachable routing, subject to network policy and address allocation.