What is Access Control List (ACL)?
A list of rules that specifies which users or systems are granted or denied access to a particular object or system resource.
Why it matters
Understanding this concept helps in grasping how modern networks and security systems operate, providing a foundation for more advanced topics.
Real-world Analogy
Like a VIP guest list at a club; if your name is not on the list, the bouncer (ACL) will not let you in.
Other Dictionary Terms
Advanced Persistent Threat (APT)
A stealthy threat actor, typically a nation state or state-sponsored group, which gains unauthorized access to a computer network and remains undetected for an extended period.
Dictionary TermARP Spoofing
A type of attack in which a malicious actor sends falsified ARP (Address Resolution Protocol) messages over a local area network.
Dictionary TermBotnet
A network of infected computers controlled by a single attacker, often without the owners knowing.