DEV Community: YASH PAL

Leetcode All Problems Solutions

YASH PAL — Wed, 25 Mar 2026 12:38:05 +0000

Here is the list of Leetcod problems solution in Python, java, c++ and c Programming -

Essential Cybersecurity Measures Every Modern Business Should Follow

YASH PAL — Sun, 22 Mar 2026 06:45:21 +0000

Modern businesses run on digital trust. Customers expect their data to be safe, and partners expect operations to be reliable. To meet those expectations, security must be a daily practice, not a yearly project.

This article walks through practical measures that reduce risk fast. Each section focuses on actions you can apply in most environments. The goal is simple - shrink the attack surface and strengthen your defences without adding needless complexity.

Assessing Your Risk Landscape

Start with a clear view of what you must protect. List your critical assets, map where sensitive data lives, and note who can access it. This inventory becomes the foundation for every security decision.

Next, identify the most likely threats to those assets. Ransomware, phishing, credential theft, and exposed cloud resources top the list for most teams. Rank scenarios by business impact and likelihood to guide your roadmap.

Finally, tie risks to controls and owners. Each high risk needs a control you can measure and a person who is accountable. Simple dashboards help track progress and keep plans grounded in reality.

Building A Strong Identity And Access Foundation

Identity is the new perimeter, so start with strong authentication. Require multifactor authentication for admins and remote users, then expand to all users and key apps. Keep login prompts smart with conditional access and risk signals.

Role-based access helps you grant the least privilege by default. Having strong Cybersecurity for comprehensive threat defense means uniting identity controls with continuous monitoring, timely patching, and rehearsed incident response so gaps are found and fixed fast. Rotate credentials and use passwordless methods where possible.

Protect machine identities, too. Use managed secrets, short-lived tokens, and just-in-time elevation. Audit service accounts and remove broad permissions that no longer serve a purpose.

Email And Phishing Defence That Actually Works

Start with layered email security. Enable DMARC, DKIM, and SPF to reduce spoofing. Use advanced filtering to block malware, links to known bad domains, and suspicious attachment types.

Assume some messages will slip through. Train employees to spot social engineering and to report suspected phishing quickly. Keep training short, frequent, and tied to real examples that match your industry.

Reduce the blast radius when mistakes happen. Disable macros by default, open risky documents in isolated containers, and limit what a user can do with a single click. Fast containment beats perfect prevention.

Network Segmentation And Zero Trust Basics

Treat networks as untrusted by default. Segment critical systems away from general user zones and restrict east-west traffic. Microsegmentation in data centres and cloud helps keep intruders from moving freely.

Adopt least privilege at the network layer. Use identity-aware proxies and policy engines that evaluate users, devices, and context before granting access. Logs from these decisions become gold for detection and investigation.

Keep an eye on remote access pathways. Replace legacy VPNs with modern access brokers where practical. Monitor for unusual patterns like new geographies, odd hours, or sudden spikes in data transfer.

Note: Computer Science is a branch where Engineers Use Programming to Solve Real-World Problems.

Backups, Recovery, And Business Continuity

Assume a day when systems fail or get encrypted. Build a 3-2-1 backup plan with offline or immutable copies. Test restores on a schedule, not just the backup job itself.

Document recovery steps for each critical service. Who declares an incident? Where are the runbooks, and what is the order of operations? Practice tabletop scenarios so people know their roles under pressure.

Plan for partial operations. Can you run core finance, sales, and support if email is down? Can your warehouse ship if the main ERP is offline? Small continuity wins reduce stress during real events.

Security Monitoring And Incident Response

Visibility turns noise into action. Centralise logs from identity, endpoints, cloud, and network into a platform your team can actually use. Tune alerts to focus on high-fidelity signals like impossible travel or privilege escalation.

Harden endpoints with EDR and strong baselines. Block known bad behaviours and auto-isolate compromised devices. Pair detections with rapid playbooks that collect forensics and notify humans only when needed.

Create an incident response framework that scales. Define severity levels, communication paths, and decision points. After each incident, run a blameless review and turn lessons into updated controls.

Secure Software And Cloud Configuration

Bake security into the development process. Use code scanning, dependency checks, and secret detection in your pipelines. Fix the highest risk issues before code reaches production.

Harden cloud accounts with guardrails. Enforce encryption at rest and in transit, restrict public exposure, and monitor for misconfigurations. Tag resources and tie them to owners to avoid orphaned services.

Protect APIs with strong authentication and rate limits. Log requests, validate inputs, and watch for spikes or odd patterns. Version your APIs and retire legacy endpoints that no longer serve business value.

No business can remove all cyber risk, but every business can make smart moves that reduce it. Start with identity, segment your networks, and plan your recovery steps. Keep improving a little each quarter, and your security posture will grow stronger.

Security is a journey powered by small, steady choices. Build processes that people can follow and tools they can trust. Those choices add up to resilience that customers and teams can count on.

Proof of Usefulness

Proof of Usefulness Hackathon is a global 6-month developer challenge designed to reward real-world utility projects and initiatives. With 150,000+ in cash prizes and software credits for winners and $1500+ worth of software and inventory for participants, this is undisputedly the biggest contest of the year.

Computer Architecture Tutorials

YASH PAL — Sun, 01 Feb 2026 12:27:58 +0000

Here is Computer Architecture tutorials that you need to follow and use with step by step guide. using this guide you can prepare for exams.

Computer Architecture Fundamentals

Register Transfer and Micro Operations

Computer Organization and Design

Central Processing Unit

Pipeline and Vector Processing

Computer Arithmetic

Memory Organization

Input-Output Organization

HackerRank Algorithms Problems Solutions

YASH PAL — Sun, 15 Jun 2025 06:27:24 +0000

HackerRank Python problems solutions

YASH PAL — Wed, 25 Sep 2024 10:45:03 +0000

HackerRank Java problems solutions

YASH PAL — Wed, 25 Sep 2024 10:37:38 +0000

HackerRank C++ problems solutions

YASH PAL — Wed, 25 Sep 2024 08:19:01 +0000

HackerRank c problems solutions

YASH PAL — Wed, 25 Sep 2024 08:09:18 +0000

Human values tutorials

YASH PAL — Wed, 25 Sep 2024 08:08:02 +0000

Internet and networking topics

YASH PAL — Wed, 25 Sep 2024 08:06:13 +0000

What is World Wide Web? — Evolution of WWW

Types of Web browsers and Servers — Digital Communication

Types of Search Engines and their Working

Hypertext and Hyperlinks in Networking

What is Web Browser | Its Features and Types

Searching on the Web

Introduction to Email — Electronic mail

Email protocols and types

Structure of the Email message

what is Internet and it’s Characteristics — Ownership and Growth

Anatomy and Structure of Internet Service — Digital Communication

History of World Wide Web Information System

Applications of Internet

Commercial Impact of the Internet on Society

Transmission Control & Internet Protocol (TCP/IP)

What is Internet Protocol (IP) and it’s Working Process

Types of Internet Layer Protocols — Networking

What is Fiber Distributed Data Interface (FDDI)

What is Asynchronous Transfer Mode (ATM)

Local Area Networks (LAN) — Topologies

WIDE AREA NETWORKS (WANs) — Digital Communication

Access Methods in Networking

Domain Name System (DNS) and Workgroup

What is Network Architecture — Networking

Client-Server Architecture and its Applications

Types of Internet Protocols

Internet Security Threats — Digital Communication

What is Firewall? Three types of Firewalls and benefits — Digital Communication

Internet Security & Authentication Methods — Digital Communication

Information Privacy & Copyright Issues — Digital Communication

What is CRYPTOGRAPHY and its Types — Digital Communication

Introduction to Multimedia — Digital Communication

Virtual Reality Modeling Language — Digital Communication

What is Common Gateway Interface (CGI)

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Data Structures and Algorithms Tutorials

YASH PAL — Thu, 26 May 2022 18:09:21 +0000

all you need is to just follow these tutorials to learn Data Structures and algorithms.

Basic Algorithms

Linked List

Doubly Linked List

Circular Linked list

Stack

Stack in data structure

Queue

Tree

Tree in the data structure

Binary Tree

Binary Search tree

Heap

Heap in data structures

IoT Tutorials for Learning Development

YASH PAL — Wed, 25 May 2022 17:37:29 +0000

These IoT tutorials are prepared based on the University exams and for Interview preparations. all these IoT topics are included with detailed explanations. so if anyone wants to learn about IoT then one should need to follows all these topics step by step as shown below.