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\author{bytebar}
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  /Title (comptia-security-sy0-701-acronyms-and-key-terms.pdf)
  /Creator (Cheatography)
  /Author (bytebar)
  /Subject (CompTIA Security+ (SY0-701) Acronyms \& Key Terms Cheat Sheet)
}

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    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{CompTIA Security+ (SY0-701) Acronyms \& Key Terms Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{bytebar} via \textcolor{DarkBackground}{\uline{cheatography.com/218949/cs/48450/}}}
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}bytebar \\
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 20th September, 2026.\\
   Page {\thepage} of \pageref{LastPage}.
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  Measure your website readability!\\
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\mymulticolumn{2}{x{17.67cm}}{\bf\textcolor{white}{Core Security Concepts}}  \tn
% Row 0
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CIA triad & Confidentiality, Integrity, Availability: the three pillars of security \tn 
% Row Count 3 (+ 3)
% Row 1
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AAA & Authentication, Authorization, Accounting: who you are, what you can do, what is logged \tn 
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% Row 2
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Zero Trust & Never trust, always verify: verify every user and device explicitly \tn 
% Row Count 10 (+ 3)
% Row 3
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Least privilege & Users get only the minimum access needed for their job \tn 
% Row Count 12 (+ 2)
% Row 4
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Defense in depth & Layered controls so one failure does not breach everything \tn 
% Row Count 15 (+ 3)
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APT & Advanced Persistent Threat: long-term targeted intrusion, often nation-state \tn 
% Row Count 4 (+ 4)
% Row 1
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DDoS & Distributed Denial of Service: traffic flood from many sources \tn 
% Row Count 7 (+ 3)
% Row 2
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MITM & Man-in-the-Middle: attacker intercepts traffic between two parties \tn 
% Row Count 10 (+ 3)
% Row 3
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SQLi & SQL Injection: malicious SQL via unsanitized input \tn 
% Row Count 13 (+ 3)
% Row 4
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XSS & Cross-Site Scripting: malicious script injected into web pages \tn 
% Row Count 16 (+ 3)
% Row 5
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XSRF/CSRF & Cross-Site Request Forgery: forged requests using a victim's session \tn 
% Row Count 19 (+ 3)
% Row 6
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Phishing / Whaling / Vishing & Email / executive-targeted / voice-call social engineering \tn 
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% Row 7
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Ransomware & Malware that encrypts data and demands payment \tn 
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AES & Advanced Encryption Standard: symmetric cipher (128/192/256-bit) \tn 
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% Row 1
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RSA & Asymmetric cipher used for key exchange and digital signatures \tn 
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PKI & Public Key Infrastructure: CAs, certificates, trust chains \tn 
% Row Count 9 (+ 3)
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CA & Certificate Authority: issues and signs digital certificates \tn 
% Row Count 12 (+ 3)
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CRL / OCSP & Certificate Revocation List / online check for revoked certs \tn 
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Hashing (SHA-256) & One-way integrity check; hashing is not encryption \tn 
% Row Count 17 (+ 2)
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Digital signature & Proves authenticity, integrity, and non-repudiation \tn 
% Row Count 19 (+ 2)
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TLS & Encrypts data in transit (HTTPS); SSL is deprecated \tn 
% Row Count 21 (+ 2)
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IDS / IPS & Intrusion Detection / Prevention System: detect vs detect-and-block \tn 
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HIDS / NIDS & Host-based vs network-based IDS \tn 
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SIEM & Security Information and Event Management: centralized log analysis \tn 
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SOAR & Security Orchestration, Automation and Response \tn 
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WAF & Web Application Firewall: filters HTTP attacks like SQLi and XSS \tn 
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NAC & Network Access Control: enforces device compliance before joining \tn 
% Row Count 16 (+ 3)
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DMZ & Demilitarized Zone: buffer network between public and private \tn 
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VPN / IPsec & Encrypted tunnel; IPsec suite for secure IP communications \tn 
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VLAN & Virtual LAN: segments broadcast domains logically \tn 
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SPF / DKIM / DMARC & Email authentication trio against spoofing \tn 
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MFA & Multi-Factor Authentication: two or more proof categories \tn 
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SSO & Single Sign-On: one login for many apps \tn 
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SAML / OAuth / OpenID & Federation and delegated authorization standards \tn 
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RADIUS / TACACS+ & AAA protocols (TACACS+ encrypts the full payload) \tn 
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% Row 4
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RBAC / ABAC & Role-Based / Attribute-Based Access Control \tn 
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Kerberos & Ticket-based auth, port 88; default in Active Directory \tn 
% Row Count 14 (+ 3)
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LDAP & Directory access protocol, port 389 (LDAPS 636) \tn 
% Row Count 16 (+ 2)
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BIA & Business Impact Analysis: identifies critical processes and recovery priorities \tn 
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RTO / RPO & Recovery Time Objective / Recovery Point Objective \tn 
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SLA & Service Level Agreement: uptime and performance contract \tn 
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Hardening & Disabling unnecessary services and ports to reduce attack surface \tn 
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Patching & Applying fixes; one of the highest-ROI controls \tn 
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Backups (3-2-1) & 3 copies, 2 media types, 1 offsite \tn 
% Row Count 14 (+ 2)
% Row 6
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Incident response & Preparation, Detection, Containment, Eradication, Recovery, Lessons learned \tn 
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\mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{More from ByteBar}}  \tn
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\mymulticolumn{1}{x{17.67cm}}{Exam-ready? Get the \{\{link="https://bytebarhq.com/b/apZ5u"\}\}Security+ (SY0-701) Study Guide\{\{/link\}\} — \$5 at bytebarhq.com} \tn 
% Row Count 3 (+ 3)
% Row 1
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\mymulticolumn{1}{x{17.67cm}}{Free IT study resources and practice questions at bytebarhq.com} \tn 
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