Secure Invoice Guard

🛠️ How I Built a Tool to Protect Invoices from Unauthorized Access Invoices seem harmless — just PDFs attached to emails, right? That’s what I thought too… until I started looking at how easily invoice PDFs can be intercepted, altered, or misused. These documents often contain sensitive data: customer names, amounts due, services provided, even account numbers. Yet most businesses, especially small ones, send them out completely unencrypted. After seeing how often clients forwarded invoices over public Wi-Fi or relied on generic cloud links, I realized something needed to change. 💡 The Idea: Lock the Invoice Before It Leaves Your Desk I wanted a solution that was: Simple for small businesses to use Secure enough to protect confidential data Offline — no reliance on cloud storage or third-party platforms That’s how Secure Invoice Guard was born.