Tạo Chỉ Số

Chỉ số. Cho hệ thống yêu cầu mật khẩu số nghiêm ngặt.

An toàn 100% Miễn phí không giới hạn Không cần đăng ký Dựa trên trình duyệt

📋 When to Use Numbers-Only Passwords

Pure digits (0-9) with no letters or symbols. Essential for telephone banking PINs, ATM codes, legacy mainframe systems, and IVR (phone menu) authentication. Many older financial systems only accept numeric input via telephone keypads. For security, use at least 8-12 digits.

📊 Phan Tich Ky Thuat — numbers-only

  • Entropy: 40 bits at 12 digits
  • Crack time: Milliseconds (short) / seconds (long)
  • Security level: Very Weak
  • Tot Nhat Cho: Phone PINs, legacy codes

All calculations assume numbers-only with mixed character types. Actual security depends on specific character selection.