Your mobile number is one of the most important parts of your digital identity. It is linked to your Aadhaar, bank accounts, UPI apps, email accounts, social media profiles, government services and other portals. This makes your mobile number also a target for cybercriminals. If someone gets a SIM card using your identity documents without your knowledge, it can be used for scams, financial frauds or illegal activities without your knowledge. So, it is important to understand how this works and keep things in your control.To help customers identify and report such instances, the Department of Telecommunications (DoT) has introduced TAFCOP (Telecom Analytics for Fraud Management and Consumer Protection) as a part of its Sanchar Saathi portal. This online service allows users to check all mobile numbers that have been issued in their name, find out if there is something unusual or unfamiliar and report unauthorised SIM cards for verification.About The AuthorAarohy Kapoor is a dynamic content producer and editor, known for creating high-impact, consumer-first content across diverse categories including technology, home decor, health & fitness, food, pet care, sports and everyday lifestyle essentials. With a strong editorial experience and an understanding of modern consumer behaviour, she specialises in product reviews, comparison articles, buying guides and deal-led content that simplify decision-making for readers.