Facebook Data Breach Checker

HaveIBeenZuckered.com is a tool that allows users to check if their phone number is part of the Facebook data breach, which exposed 533 million Facebook accounts. The tool has ingested a large dataset and currently has 502,769,112 records from 106 different countries. It uses k-anonymity to ensure user privacy and does not store any user-provided input. Key features include a simple and secure interface, support for phone numbers from around the world, and regular updates to the dataset. The tool is useful for individuals who want to check if their phone number has been compromised and take steps to protect their online identity. Technical implementation details include the use of k-anonymity for privacy and a large dataset of phone numbers. Specific use cases include checking if a phone number is part of the breach and taking steps to secure online accounts. Unique differentiators include the tool's simplicity, security, and focus on user privacy.