--- title: "Rabindra Kumar Meher (@rabindra18) | Hashnode" description: "Intermidiate in JS, BackEnd Dev in the making. Read the latest articles by Rabindra Kumar Meher on Hashnode." url: "https://hashnode.com/@rabindra18" --- @rabindra18 # Rabindra Kumar Meher @rabindra18 · Joined June 2024 Intermidiate in JS, BackEnd Dev in the making ### [Your VPN Isn't as Safe as You Think: 5 Shocking Truths from Recent Research](https://rabindra-kumar-meher.hashnode.dev/your-vpn-isnt-as-safe-as-you-think-5-shocking-truths-from-recent-research?utm_source=hashnode&utm_medium=feed) Discover the hidden risks of VPNs as recent research reveals shocking vulnerabilities that compromise your online security and privacy 7 min read · [rabindra-kumar-meher.hashnode.dev](https://rabindra-kumar-meher.hashnode.dev/your-vpn-isnt-as-safe-as-you-think-5-shocking-truths-from-recent-research?utm_source=hashnode&utm_medium=feed) [Nov 27, 2025](https://hashnode.com/posts/your-vpn-isnt-as-safe-as-you-think-5-shocking-truths-from-recent-research/6928533f6744d858907d5a70) ### [SQL Injection for Beginners – How Hackers Break into Websites](https://rabindra-kumar-meher.hashnode.dev/sql-injection-for-beginners-how-hackers-break-into-websites?utm_source=hashnode&utm_medium=feed) Learn to defend against SQL Injection, which exploits database vulnerabilities, in this beginner's guide 4 min read · [rabindra-kumar-meher.hashnode.dev](https://rabindra-kumar-meher.hashnode.dev/sql-injection-for-beginners-how-hackers-break-into-websites?utm_source=hashnode&utm_medium=feed) [Aug 12, 2025](https://hashnode.com/posts/sql-injection-for-beginners-how-hackers-break-into-websites/689b75f2337f68f693950964) ### [Step-by-Step Instructions for MongoDB Aggregation Pipelines](https://rabindra-kumar-meher.hashnode.dev/step-by-step-instructions-for-mongodb-aggregation-pipelines?utm_source=hashnode&utm_medium=feed) Learn the intricacies of MongoDB aggregation pipelines with this comprehensive guide on key stages, optimization techniques, and advanced features 8 min read · [rabindra-kumar-meher.hashnode.dev](https://rabindra-kumar-meher.hashnode.dev/step-by-step-instructions-for-mongodb-aggregation-pipelines?utm_source=hashnode&utm_medium=feed) [Jun 26, 2024](https://hashnode.com/posts/step-by-step-instructions-for-mongodb-aggregation-pipelines/667c112b67e06c47a48efb6a) ### [Difference between Access token and Refresh token](https://rabindra-kumar-meher.hashnode.dev/difference-between-access-token-and-refresh-token?utm_source=hashnode&utm_medium=feed) Access tokens and refresh tokens are key components in authentication and authorization for web and mobile applications 2 min read · [rabindra-kumar-meher.hashnode.dev](https://rabindra-kumar-meher.hashnode.dev/difference-between-access-token-and-refresh-token?utm_source=hashnode&utm_medium=feed) [Jun 25, 2024](https://hashnode.com/posts/difference-between-access-token-and-refresh-token/667aed5f8f85052e3ce02209)