CYBERSECURITY

Cybersecurity

The practice of protecting systems, networks, and programs from digital attacks.

Cyberattacks

Offensive actions that target computer information systems, networks, or personal devices to steal, alter, or destroy data.

Denial-of-Service (DoS) Attack

Overwhelms a system's resources, making it unable to respond to service requests.

Distributed Denial-of-Service (DDoS) Attack

Similar to a DoS attack, but launched from multiple infected host machines controlled by the attacker.

Man-in-the-Middle (MitM) Attack

Occurs when a hacker intercepts and manipulates communications between a client and a server.

Drive-by Attack

Spreading malware by injecting a malicious script into insecure websites or redirecting victims to controlled sites.

Password Attack

Obtaining passwords through various methods like social engineering, guessing, or brute-force password guessing.

Birthday Attack

Exploiting hash algorithms to find two random messages that generate the same message digest.

Cybersecurity Events:

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"Creeper" infected ARPANET, leading to the creation of the first antivirus program.

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Greg Chung stole aerospace documents for 30 years and gave them to China.

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Edward Snowden leaked classified information from the National Security Agency.

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Hackers compromised Yahoo, exposing personal information of over 3 billion users.

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WannaCry ransomware infected over 230,000 computers in one day.

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NotPetya virus wiped data from computers, including energy firms and government offices.

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Equifax failed to patch a vulnerability, compromising data of over 143 million Americans.

Cyber Kill Chain

A series of steps followed by attackers to infiltrate and exploit a target system.

Security Operations Center (SOC)

A team of IT security professionals that monitors an organization's IT infrastructure to detect cybersecurity events.

Security Posture

The readiness of an organization to protect its assets from cyber threats.

SOC Activities and Responsibilities

Preparation, planning, and prevention; monitoring, detection, and response; recovery, refinement, and compliance.

SOC Team Members

Incident Responder, Forensic Investigator, Compliance Auditor, Security Analyst, Security Engineer, Threat Hunter, SOC Manager, SOC Operator, Malware Analyst, Security Awareness Trainer.