Finding weaknesses and improving system security - Crossword

Clues

1. Authorised attempt to break into a system to find security weaknesses without causing damage. (14)
2. Paid or invited expert who tests the security of a system with permission. (8)
3. Outsider who discovers a security flaw but does not use it for personal gain. (7)
4. Purposeful assessment of every aspect of a system's security, with findings reported afterwards. (10)
5. Security gaps in a system that leave it open to attack. (15)
6. To take advantage of a weakness in a system to gain access. (7)
7. Data sent without being converted into a coded form. (11)
8. Network security devices that can be poorly configured and allow unauthorised access. (9)
9. Records that show which user has used a computer system and when. (10)
10. Software that detects and removes malicious programs from a device. (9)