Nizam Ud Deen
Muhammad Nizam Ud Deen Usman is the founder of theCoreiTech and the author of The Local SEO Cosmos. He has worked in search since 2014 as an SEO consultant for eCommerce stores and local businesses, specialising in eCommerce SEO, local SEO and technical SEO, and runs SEO Academy and the SEO Community from Multan, Pakistan. He also founded ORM Digital Solutions, a digital agency serving medium and large businesses, and holds a degree from the University of Education, Lahore (Multan Campus). Plerdy lists him among its Best 20+ SEO Experts in Pakistan. Nizam started theCoreiTech in 2012 to make computers easier to understand and use for everyone. More of his work is at nizamuddeen.com.
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Computer Security
What Is SSL/TLS?
SSL/TLS is the cryptographic protocol that encrypts web traffic and powers HTTPS, covering the TLS handshake, certificates, and SSL vs…
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Computer Security
What Is Multi-Factor Authentication?
What is multi-factor authentication: requiring two or more verification factors to log in explained, including MFA types, why it stops…
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Computer Security
What Is a Passkey?
A passkey is a passwordless login credential using public-key cryptography, covering how passkeys work, why they resist phishing, syncing, and…
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Computer Security
What Is Hashing?
Hashing converts data into a fixed-length one-way fingerprint, covering hash function properties, hashing vs encryption, SHA-256, salting, and common uses.
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Computer Security
What Is Biometric Authentication?
What is biometric authentication: verifying identity using physical or behavioral traits explained, including fingerprint, face, and iris methods, and the…
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Computer Security
What Is Access Control?
Access control regulates who can access resources and what they can do, covering the DAC, MAC, RBAC, and ABAC models…
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Computer Security
What Is Zero Trust Security?
Zero trust security trusts no user or device by default and verifies every request, covering its principles, how it differs…
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Computer Security
What Is Online Tracking?
Online tracking monitors user activity across sites through cookies, pixels, and fingerprinting, covering who tracks, the end of third-party cookies,…
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Computer Security
What Is a Security Vulnerability?
What is a security vulnerability: a weakness that attackers can exploit explained, including types, how vulnerabilities are scored with CVSS,…
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Computer Security
What Is a Data Breach?
A data breach exposes confidential data to unauthorized parties, covering common causes, major examples like Equifax, consequences, and how to…
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Computer Security
What Is Penetration Testing?
What is penetration testing: authorized simulated attacks that find security weaknesses explained, including the types, phases, and pen testing versus…
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Computer Security
What Are IDS and IPS?
IDS vs IPS explained: intrusion detection systems monitor and alert while intrusion prevention systems block threats, with detection methods and…
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Computer Security
What Is Incident Response?
What is incident response: the organized process of handling a security breach explained, including the NIST and SANS phases, the…
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Computer Security
What Is a SIEM?
What is a SIEM: a system that aggregates and analyzes security logs to detect threats explained, including how SIEM works,…
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Computer Security
What Is a Security Audit?
What is a security audit: a systematic evaluation of an organization's security posture explained, including types, the audit process, and…
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Computer Security
What Is Endpoint Security?
What is endpoint security: protecting the devices that connect to a network explained, including antivirus, EDR, XDR, and why endpoints…
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Computer Security
What Is the CIA Triad?
What is the CIA triad: the three core principles of information security explained, including confidentiality, integrity, and availability with real…
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Computer Security
What Is Cybersecurity? The Complete Guide
A complete guide to cybersecurity: threats and malware, cyberattacks, privacy and encryption, authentication, and enterprise defense, with 44 in-depth articles.
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Computer Software
NTFS vs FAT32 vs exFAT: Which File System to Use?
NTFS vs FAT32 vs exFAT compared by file size limits, partition limits, and cross-platform compatibility, with a table and guidance…
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Computer Software
Email Clients Explained: Desktop vs Webmail
Email clients explained: what an email client does, desktop apps versus webmail, the IMAP and POP3 protocols, and the major…
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Computer Software
Note-Taking Apps Explained
Note-taking apps explained: the types of note apps, key features like sync and markdown, and how Notion, Evernote, OneNote, and…
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Computer Software
PDF Software Explained: Readers and Editors
PDF software explained: what PDF readers, editors, and converters do, the difference between viewing and editing PDFs, and the main…
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Computer Software
Cloud Storage Services Compared
Cloud storage services compared: Google Drive, OneDrive, Dropbox, and iCloud on free storage, syncing, sharing, and platform integration.
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Computer Software
What Is Linux? A Complete Beginner’s Guide
What is Linux: the open-source operating system explained, including the kernel, distributions, how it differs from Windows, and where Linux…
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