Presenting how a proper audit trail implementation should look like in the context of banking and insurance.

1. Audit trail and blockchain – why and how
Bozhidar Bozhanov, CEO @ LogSentinel

2. Audit trail
Business-level
events
Access,
modification,
authentication
Securely stored
and compliant
Digital forensics
Better Security and
Compliance
Source for anomaly
detection

3. Why current audit trail is not secure?
Admins can modify
and delete it
Entries can be back-
dated
No proof to third
parties Can’t reliably be
used in court

4. Key Security Problems
Maintain Data Integrity
Prove integrity to 3rd parties
Prevent Malicious Tampering
Legal Compliance
Secure Logging and
Audit Proof

5. How can blockchain help?
Unmodifiable or
tamper-evident
Provable integrity Not relying on trust Digital evidence
Better Security and
Compliance
Legal strength
(eIDAS)
Blockchain and related
cryptographic methods

6. Our approach: LogSentinel Trails
Tamper-evident
private blockchain
Anchored to
Ethereum
Fast and scalable
Fraud Detection
Capabilities
Simple to integrate

7. Use case 1: Bulgarian e-Government
Signed and time-
stamped block
LogSentinel
API
Queries from Administrations
National and Regional
Databases
Access Log
Central eGov Component

8. Use case 2: Raiffeisenbank Bulgaria (NDA)
Logs from various sources
Further strengthen audit trail
Detect anomalous and
fraudulent behaviour
Prove authenticity and
integrity to 3rd parties

9. Conclusion
Many existing solutions give false sense of security
Proper audit trail: cryptographically secure with provable integrity (blockchain)
1
2
Technologically ensure compliance with GDPR, PSD2 and data privacy standards3

10. Thank you
• For more information visit:
logsentinel.com
• Contact us at:
contact@logsentinel.com