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
Types of Phishing Attacks
Types of phishing attacks explained: email phishing, spear phishing, whaling, smishing, vishing, and clone phishing, with warning signs and how…
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Computer Security
What Is a DDoS Attack?
What is a DDoS attack: flooding a service with traffic to make it unavailable explained, including attack types, how botnets…
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Computer Security
What Is Malware?
What is malware: malicious software designed to harm or exploit a device explained, including the main types, how it spreads,…
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Computer Security
Types of Malware Explained
Types of malware explained: viruses, worms, trojans, ransomware, spyware, adware, rootkits, keyloggers, and botnets, with how each works and how…
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Computer Security
What Is a Computer Worm?
What is a computer worm: self-replicating malware that spreads across networks without a host file, including how worms work, examples,…
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Computer Security
What Is Spyware?
What is spyware: malware that secretly monitors and collects information explained, including types, signs of infection, and how to detect…
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Computer Security
What Is a Rootkit?
What is a rootkit: stealthy malware that hides deep in a system to maintain access, including types, why they are…
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Computer Security
What Is Adware?
What is adware: software that displays unwanted ads and may track activity, including how it works, the risks, and how…
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Computer Security
What Is a Trojan Horse?
What is a trojan horse: malware disguised as legitimate software explained, including how trojans work, common types, and how to…
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Computer Security
What Is a Keylogger?
What is a keylogger: software or hardware that records keystrokes to steal data, including types, how to detect them, and…
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Computer Security
What Is a Botnet?
What is a botnet: a network of infected devices controlled by an attacker, including how botnets form, what they are…
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Computer Security
What Is a Man-in-the-Middle Attack?
What is a man-in-the-middle attack: an attacker secretly intercepting communication between two parties, including types, risks, and how to prevent…
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Computer Security
What Is Data Privacy?
Data privacy is the control over how personal information is collected, used, and shared, covering privacy vs security, GDPR, CCPA,…
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Computer Security
What Is a Zero-Day Exploit?
What is a zero-day exploit: an attack using a vulnerability unknown to the vendor, including zero-day vs known flaws, examples,…
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Computer Security
What Is SQL Injection?
What is SQL injection: a web attack that manipulates database queries explained at a high level, including the risk to…
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Computer Security
How Encryption Works
Encryption converts readable data into ciphertext with keys and algorithms, covering symmetric and asymmetric methods, AES, RSA, and common uses.
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Computer Security
What Is a Brute Force Attack?
What is a brute force attack: systematically guessing passwords or keys until one works, including types and how strong passwords…
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Computer Security
What Is Identity Theft?
What is identity theft: stealing personal information to commit fraud, including how it happens, warning signs, and how to protect…
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Computer Security
Symmetric vs Asymmetric Encryption
Symmetric vs asymmetric encryption compared: one shared key versus a public-private key pair, speed, use cases, and how they combine…
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Computer Security
What Is End-to-End Encryption?
End-to-end encryption keeps keys only on sender and recipient devices so no intermediary reads messages, covering how it works, apps,…
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Computer Security
What Is a Digital Certificate?
A digital certificate binds a public key to a verified identity issued by a Certificate Authority, covering PKI, the chain…
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Computer Security
What Is Authentication?
What is authentication: the process of verifying a user's identity explained, including the factors of authentication, methods, and authentication versus…
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Computer Security
Authentication vs Authorization
Authentication vs authorization compared: authentication verifies who you are while authorization decides what you can access, with how they work…
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Computer Security
What Is Single Sign-On (SSO)?
Single sign-on lets a user log in once to access many applications, covering how SSO works, SAML, OAuth, OpenID Connect,…
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