Che giấu dữ liệu

Dữ liệu masking (also known as data obfuscation or data anonymization) is ... process of hiding or replacing sensitive data với placeholder characters such as asterisks (*). It protects personal inchomation like phone numbers, email addresses, ID card numbers, và credit card numbers while maintaining ... data chomat để hiển thị or testing purposes.

Select a masking type (Phone, Email, ID Card, Credit Card, Bank Card, Name, Address, or Custom), ...n enter ... data you want to mask — one item per line. Click ... Mask button to process. The tool will detect matching patterns và replace ... sensitive portions với asterisks. You can load sample data by clicking ... Example button.

Phone: Masks ... middle 4 digits of phone numbers (e.g., 138****5678). Email: Keeps ... first 2 characters và masks ... rest trước khi ... @ symbol (e.g., zh***@example.com). ID Card: Masks ... middle portion of ID numbers (e.g., 110101********1234). Credit Card: Shows only ... last 4 digits (e.g., **** **** **** 0001). Bank Card: Shows only ... last 4 digits (e.g., **********0123). Name: Keeps ... first và last characters cho longer names (e.g., Z***g). Address: Keeps roughly 30% at ... start và 20% at ... end. Custom: Define your own regex pattern và replacement chuỗi.

For advanced use cases, select ... Custom type và provide a JavaScript-compatible regular expression pattern và replacement chuỗi. The replacement supports capture groups using $1, $2, etc. For example, pattern (\d{3})\d+(\d{3}) với replacement $1****$2 will keep ... first và last 3 digits while masking ... middle.