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Tech Tutorials | App Reviews & Android Fixes | Fintech Shield Blog
Welcome to the Fintech Shield Blog | Your go-to hub for insightful Tech Tutorials, Unbiased App Reviews, Android Solutions, Windows Solutions and Digital innovation tips. Whether you're a curious user or a seasoned tech pro, we’ve got something valuable for you. Stay ahead in the digital era with our expert-driven guides and updates.
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What Are the Three Goals of Cybersecurity? [CIA Triad Explained]
The three goals of cybersecurity - Confidentiality, Integrity, and Availability form the backbone of digital protection. This blog explains the CIA Triad, why it matters, and how it applies to real-world scenarios in 2025.
Kalyan Bhattacharjee
Sep 223 min read


Android 16 Fights Stingray Surveillance with New Network Notification Feature
Android 16 is stepping up mobile security with its new “Network Notifications” feature, designed to alert users when their device connects to fake cell towers—also known as Stingrays. This update offers a major privacy boost by detecting unencrypted or suspicious networks, helping users stay one step ahead of surveillance threats.
Kalyan Bhattacharjee
Jul 113 min read


Top Cybersecurity Companies in India (2025 List & Services)
Cyberattacks in India are rising — and these cybersecurity companies are stepping up. From antivirus to AI threat detection, here’s who’s leading the charge in 2025.
Kalyan Bhattacharjee
Jul 54 min read


Data Leak: 16 Billion Usernames and Passwords Compromised (2025)
In one of the largest data exposures in history, over 16 billion usernames and passwords have surfaced on the dark web, raising serious concerns about global cybersecurity. Compiled from multiple breaches and info-stealer malware attacks, this massive dataset includes login credentials from platforms like Google, Facebook, Apple, and more. If you've reused passwords or stored them in your browser, your accounts could be at risk.
Kalyan Bhattacharjee
Jun 205 min read


How Does Antivirus Software Work? A Beginner-Friendly Guide
Ever wondered how antivirus software keeps your computer safe? This beginner-friendly guide explains how antivirus detects, blocks, and removes threats in real-time.
Kalyan Bhattacharjee
Apr 284 min read


Cybersecurity Threat Detection: Key Elements of Network Security Monitoring
Ensure robust cybersecurity with effective Network Security Monitoring. Learn key factors to detect threats, and prevent breaches.
Kalyan Bhattacharjee
Jan 83 min read


Network Security Key | What It Is and Why It Matters (2025 Guide)
A Network Security Key is more than just a Wi-Fi password. It's your first line of defense against unauthorized access to your private network. In this blog, we explore what a network security key is, the different types (WEP, WPA, WPA2/WPA3), and why understanding it is crucial for protecting your digital footprint. Whether you're a home user or managing a business network, knowing how this key works can help you secure your data and prevent cyber threats.
Kalyan Bhattacharjee
Aug 26, 20245 min read


Network Security - A Deep Dive into Firewall Authentication
Explore the critical role of firewall authentication in network security, and learn how step-by-step implementation safeguards systems, controls access, and protects sensitive data from cyber threats.
Kalyan Bhattacharjee
Mar 22, 20243 min read


CERT-IN: Origin, Purpose, and Role in India's Cybersecurity Landscape
The Indian Computer Emergency Response Team (CERT-IN) plays a pivotal role in safeguarding the nation's digital infrastructure. Established under the Ministry of Electronics and Information Technology, CERT-IN is the nodal agency for responding to cybersecurity threats and incidents in India. This blog explores the origin, purpose, and vital functions of CERT-IN in strengthening India’s cyber defense and promoting secure digital practices nationwide.
Kalyan Bhattacharjee
Feb 13, 20243 min read


What Is a RAT Tool? Risks, Examples, and How to Prevent Attacks
Remote Access Trojans (RATs) are powerful yet dangerous tools that can give cybercriminals full control over your device without your knowledge. In this blog, we break down what RAT tools are, how they work, the risks they pose to your privacy and data, and most importantly - how you can prevent falling victim to them.
Kalyan Bhattacharjee
Sep 6, 20234 min read


MITM Attacks Explained: Securing Your Digital World
Man-in-the-Middle (MITM) attacks are a stealthy but powerful cyber threat where attackers secretly intercept or alter communication between two parties. Whether you're browsing over public Wi-Fi or logging into secure websites, MITM attacks can expose your personal data, login credentials, and sensitive transactions. In this blog, we break down how these attacks work, the signs to watch for, and the essential steps you can take to protect your digital life.
Kalyan Bhattacharjee
Jul 18, 20234 min read


What Is Phishing? Protecting Yourself from Phishing Attacks
Phishing Attacks Introduction In today's interconnected world, where online activities have become an integral part of our daily lives,...
Kalyan Bhattacharjee
Jun 30, 20233 min read


Hardware Firewalls: Enterprise-Grade Security for Every Network
In an age of increasing cyber threats, relying solely on software protection isn't enough. Hardware-based firewalls offer a powerful first line of defense by filtering incoming and outgoing traffic at the network's entry point. Unlike traditional software firewalls, these dedicated security devices provide enhanced performance, deeper packet inspection, and are less vulnerable to tampering.
Kalyan Bhattacharjee
Jun 12, 20234 min read


Firewalls Explained | The First Line Of Strong Cyber Defense
Firewalls serve as the digital gatekeepers of your network, monitoring and controlling incoming and outgoing traffic based on pre-defined security rules. Whether hardware- or software-based, they create a protective barrier between trusted internal networks and untrusted external sources like the internet. This blog breaks down how firewalls work, their different types, and why they remain the first line of defense against modern cyber threats in 2025.
Kalyan Bhattacharjee
May 27, 20233 min read


Data Execution Prevention (DEP): Enhancing Cybersecurity
Data Execution Prevention (DEP) is a critical security feature that helps protect your system from malicious attacks by preventing unauthorized code from running in memory. In this blog, we explore how DEP works, why it’s important for cybersecurity, and how users can ensure it's enabled to strengthen their device's defense against threats.
Kalyan Bhattacharjee
May 16, 20233 min read


Digital Warfare: DDoS Attacks and How to Prevent Them
In today’s hyper-connected world, DDoS (Distributed Denial-of-Service) attacks have evolved from basic internet nuisances into powerful tools of digital warfare. With attackers now leveraging AI-driven botnets and compromised IoT devices, even the most secure networks are at risk.
Kalyan Bhattacharjee
Apr 11, 20234 min read


India’s Cybersecurity Challenges: Threats, Gaps & Solutions
India, as one of the fastest-growing digital economies, faces a rising wave of cybersecurity threats. From data breaches and ransomware attacks to gaps in critical infrastructure protection, the country is navigating a complex cybersecurity landscape. This blog explores the key challenges India faces in securing its digital future, including outdated laws, lack of awareness, and increasing cyber warfare threats — and what steps are being taken to overcome them.
Kalyan Bhattacharjee
Apr 8, 20235 min read


Zero-Day Threat | What It Is And How to Protect Yourself
Zero-day threats are some of the most dangerous cyberattacks, exploiting unknown vulnerabilities before developers even know they exist. This blog unpacks what zero-day threats are, how they work, and most importantly how you can stay protected using proactive security measures, software updates, and threat intelligence tools. Stay one step ahead in today’s rapidly evolving digital battlefield.
Kalyan Bhattacharjee
Apr 6, 20235 min read
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