Security

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Across
  1. 2. Warning Signal
  2. 4. Free from harm or a secure box
  3. 5. Identification tags for access
  4. 7. Data scrambling for privacy
  5. 8. Person who protects
  6. 10. Close observation
  7. 11. Keeping safe from harm
Down
  1. 1. Secret word for entry
  2. 3. Resistance against attack
  3. 5. Copy of data for safety
  4. 6. Network security system
  5. 9. Guarantee or pledge