description: Set up and manage your 6-digit PIN

PIN Security

🔐 Understanding Your PIN

Your 6-digit PIN is the primary security method for DropFi:

📍 Initial PIN Setup

During Wallet Creation

When creating a new wallet:

1. "Set Your PIN" Screen
2. Enter 6 digits
3. Confirm PIN
4. Success message
5. Option for biometrics

PIN Requirements

Must Be:

• Exactly 6 digits
• Numbers only (0-9)
• Memorable to you
• Different from obvious patterns

Should Avoid:

• ❌ Sequential: 123456, 654321
• ❌ Repeated: 111111, 000000
• ❌ Birthdays: MMDDYY
• ❌ Simple patterns: 123321
• ❌ Phone unlock PIN

Creating Strong PINs

Good PIN Strategies:

1. Memory Technique

   • Important date + offset
   • Phone number segment
   • Address digits mixed
   • Personal algorithm

2. Pattern Method

   • Keypad shape (L, Z, X)
   • Alternating high/low
   • Outside-in sequence
   • Mathematical result

3. Word Association

   • Phone keypad letters
   • First letters = numbers
   • Memorable phrase
   • Personal meaning

Example Strong PINs:

• 295847 (random mix)
• 741963 (keypad pattern)
• 280419 (date with offset)
• 583920 (personal algorithm)

🔄 Changing Your PIN

When to Change

Consider changing your PIN if:

• Someone might have seen it
• You've shared your device
• It's been 6+ months
• You want better security
• You forgot current PIN

Change Process

1. Open Settings

   textCopy
   Settings → Security → Change PIN
   

2. Verify Current PIN

   • Enter existing 6 digits
   • Or use biometrics
   • Confirms identity

3. Set New PIN

   • Enter new 6 digits
   • Must be different
   • Follow requirements

4. Confirm New PIN

   • Re-enter to verify
   • Must match exactly
   • Success notification

After Changing

Important Notes:

• Biometrics remain active
• All sessions stay logged in
• No wallet data affected
• Update muscle memory!

🚨 PIN Protection Features

Failed Attempt Handling

Progressive Security:

Security Mechanisms

Anti-Brute Force:

• Exponential delays
• Account lockout
• No PIN hints
• Attempt logging
• Device notifications

Privacy Features:

• Scrambled keypad option
• Hidden digit entry
• No PIN in backups
• Local storage only
• Encrypted at rest

🆘 PIN Recovery

Forgot Your PIN?

If you can't remember your PIN:

1. After 3 Failed Attempts

   • "Forgot PIN?" appears
   • Tap for options
   • Choose recovery method

2. Recovery Options

   • Use biometrics (if enabled)
   • Recovery phrase reset
   • Complete wallet restore

Recovery with Seed Phrase

1. Tap"Reset with Recovery Phrase"
2. Choose your backup type:
   • 12-word phrase
   • Secret numbers
   • Family seed
3. Enter your backup
4. Set new PIN
5. Wallet restored

No Recovery Phrase?

Without backup, you cannot:

• Reset PIN
• Access wallet
• Recover funds
• Bypass security

This is by design for security!

⚙️ PIN Settings

Security Options

Access via Settings → Security:

Scrambled Keypad

How it Works:

• Numbers randomize each time
• Prevents pattern observation
• Harder to shoulder-surf
• Slightly slower entry

When to Use:

• Public places
• Shared spaces
• Extra paranoia
• Demonstration mode

Auto-Lock Settings

Timer Options:

• Immediately
• 30 seconds
• 1 minute (default)
• 5 minutes
• 15 minutes
• Never (not recommended)

Triggers Lock:

• Screen timeout
• App backgrounded
• Device locked
• Manual lock
• Switching apps

🎯 PIN Best Practices

DO ✅

Security Habits:

• Change PIN periodically
• Use unique PIN for DropFi
• Enable biometrics as primary
• Cover screen when entering
• Test PIN after changing

Memory Tips:

• Write hint (not PIN) securely
• Practice entering daily
• Use meaningful numbers
• Create mental story
• Muscle memory helps

DON'T ❌

Avoid These:

• Share PIN with anyone
• Use birthday/anniversary
• Write PIN with wallet address
• Use same as device unlock
• Store in password manager

Never Do:

• Tell "support" your PIN
• Enter on suspicious screens
• Use on untrusted devices
• Ignore failed attempts
• Disable PIN requirement

📱 Device-Specific Features

iOS Integration

Keychain:

• PIN never in iCloud
• Local encryption only
• Biometric protection
• Secure enclave used

Security:

• Face ID preferred
• Touch ID backup
• Hardware encryption
• Jailbreak detection

Android Integration

Keystore:

• Hardware-backed storage
• Fingerprint priority
• TEE protection
• Root detection

Features:

• BiometricPrompt API
• Strongbox support
• Secure keyboard
• Anti-overlay protection

🔧 Troubleshooting

Common Issues

"Invalid PIN"

• Check number entered
• No letters/symbols
• Exactly 6 digits
• Try biometrics instead

"Too Many Attempts"

• Wait for timer
• Use biometrics if available
• Last resort: recovery phrase
• Don't keep trying

"PIN Not Accepted"

• Ensure correct PIN
• Check caps lock off
• No extra spaces
• Restart app

Technical Problems

Keypad Not Showing:

• Force close app
• Check permissions
• Update DropFi
• Restart device
• Clear app cache

Can't Change PIN:

• Verify current PIN first
• Check biometric settings
• Ensure app updated
• Try airplane mode
• Contact support

🎬 Quick Scenarios

Daily Use

Morning Routine:

1. Open DropFi
2. Enter PIN (2 seconds)
3. Check balance
4. Review transactions
5. Ready for day

Public Payment

Coffee Shop:

1. Enable scrambled pad
2. Cover screen angle
3. Enter PIN quickly
4. Complete payment
5. Auto-locks after

Travel Security

Airport/Hotel:

1. Use biometrics primarily
2. Scrambled pad for PIN
3. Reduce auto-lock time
4. Clear after each use
5. Extra vigilance

💡 Advanced Tips

PIN Strategies

Memorization:

• Chunk into 2x3 digits
• Create word association
• Use finger patterns
• Practice regularly
• Never write fully

Rotation System:

• Change every 3 months
• Use 3-4 PIN cycle
• Different patterns each
• Document hints only
• Track change dates

Security Layers

Complete Protection:

1. Strong unique PIN
2. Biometrics enabled
3. Auto-lock active
4. Scramble in public
5. Regular changes

💡 Pro Tip: Enable scrambled keypad when entering your PIN in public places. The random number positions make it nearly impossible for someone to figure out your PIN by watching your finger movements!