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Cybersecurity
Terms & Definitions

Understanding security terminology helps you make informed decisions about protecting your organization. This glossary defines essential security terms for managed services and enterprise protection.

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Jailbreaking
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Removing manufacturer-imposed software restrictions on mobile devices to install unauthorized applications or modify system settings. Jailbroken devices bypass security controls, exposing corporate networks to malware when used for business purposes.

Jamming
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A physical attack that floods wireless network frequencies with electromagnetic interference, preventing legitimate devices from communicating. Jamming disrupts Wi-Fi, Bluetooth, and cellular connections without requiring network access or credentials.

JavaScript security
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Practices for securing JavaScript code and preventing vulnerabilities like cross-site scripting in web applications. JavaScript security includes input validation, content security policies, and sandboxing to prevent malicious code execution.

JBOH (JavaScript-Binding-Over-HTTP)
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An exploitation technique targeting web application weaknesses to execute remote JavaScript code. JBOH attacks manipulate HTTP bindings to bypass security controls and compromise client-side application logic.

Jitter
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The intentional modification of database field values to protect privacy while maintaining statistical accuracy for analysis. Jitter adds controlled noise to sensitive data, preventing identification of individual records.

Joint Authorization
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A security authorization process requiring approval from multiple authorizing officials before granting system access. Joint authorization distributes risk and ensures appropriate oversight for high-security environments.

Jump Bag
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A pre-packed container holding essential tools, hardware, and documentation for immediate incident response deployment. Jump bags enable rapid reaction to breaches by eliminating time spent gathering equipment during emergencies.

Just-in-Time (JIT) Access
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Granting temporary, time-limited access to systems only when needed for specific tasks, then automatically revoking permissions. JIT access eliminates persistent privileges that attackers could compromise, reducing the attack surface.

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