intech breakfast briefing blockchain and ransomware
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This presentation discusses ransomware and how blockchain could potentially help address related issues. It begins with an introduction to ransomware and how it currently uses cryptocurrencies like bitcoin for untraceable payments. The presentation then provides a primer on blockchain technology and cryptography. It explains how blockchain uses cryptography and hashed blocks chained together to provide an auditable, distributed and secure record of transactions. The presentation concludes by discussing how blockchain principles could help provide verified devices and digital identities to help fight ransomware and other cyber threats.
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intech breakfast briefing blockchain and ransomware
- 1. InTech Forums Briefing – Ransomware will impact your business 09 March 2017 1 © Distlytics Ltd 2017 Blockchain and Ransomware - Friend or Foe ? Gary Nuttall Managing Director
- 2. Agenda 1. Introductions 2. Foe? 3. Targets 4. Vectors 5. Blockchain Primer 6. Friend 7. Q & A
- 3. Agenda 1. Introductions 2. Foe? 3. Targets 4. Vectors 5. Blockchain Primer 6. Friend 7. Q & A
- 4. 1 - Introduction: Me
- 5. This presentation reflects my personal views and is not intended to reflect the views of past, current and prospective employers, clients or other agents. "Prediction is very difficult, especially if it's about the future." Nils Bohr, Nobel laureate in Physics Caveat: Please read the small print…
- 6. 1 - Introduction: You What do you know about Blockchain ? Are you a Developer, Designer, Manager, Techie, CTO, CISO, Underwriter, Broker, “Business/User” ?
- 7. Agenda 1. Introductions 2. Foe? 3. Targets 4. Vectors 5. Blockchain Primer 6. Friend 7. Q & A
- 8. Foe ?
- 9. Foe ? • Off the books • Untraceable • Nobody will know ☺ • Preferred payment channel of hackers as it’s anonymous
- 10. Foe ? • Off the books • Untraceable • Nobody will know ☺ • Preferred payment channel of hackers as it’s anonymous
- 11. Foe ? • Off the books • Untraceable • Nobody will know ☺ • Preferred payment channel of hackers as it’s anonymous
- 12. Agenda 1. Introductions 2. Foe? 3. Targets 4. Vectors 5. Blockchain Primer 6. Friend 7. Q & A
- 13. 3 – Targets - DDoS Sorry – System is unavailable Please try again later
- 14. 3 – Targets - DDoS
- 15. 3 – Targets – Data Encryption
- 16. Agenda 1. Introductions 2. Foe? 3. Targets 4. Vectors 5. Blockchain Primer 6. Friend 7. Q & A
- 17. Vectors
- 18. Agenda 1. Introductions 2. Foe? 3. Targets 4. Vectors 5. Blockchain Primer 6. Friend 7. Q & A
- 19. 5 – Blockchain Primer
- 20. 5 – Blockchain Primer – Cryptography & Hashing Mathematics to keep things secure & secret Mathematics to provide a unique signature
- 21. 5 – Blockchain Primer –Blockchain(s)` Imagine a physical ledger, with pages in it
- 22. 5 – Blockchain Primer –Blockchain(s)` Imagine a physical ledger, with pages in it At the bottom of the page you enter the hash for that page
- 23. 5 – Blockchain Primer –Blockchain(s)` Imagine a physical ledger, with pages in it At the bottom of the page you enter the hash for that page At the top of the next page, you start with the hash from the previous page. This means that when you hash the page it includes the hash from the previous page.
- 24. 5 – Blockchain Primer –Blockchain(s)` Imagine a physical ledger, with pages in it At the bottom of the page you enter the hash for that page At the top of the next page, you start with the hash from the previous page So, the data is held in BLOCKS which are CHAINed together
- 25. 5 – Blockchain Primer –Blockchain(s)` Imagine a physical ledger, with pages in it At the bottom of the page you enter the hash for that page At the top of the next page, you start with the hash from the previous page So, the data is held in BLOCKS which are CHAINed together
- 26. 5 – Blockchain Primer –Blockchain(s)` Imagine a physical ledger, with pages in it At the bottom of the page you enter the hash for that page At the top of the next page, you start with the hash from the previous page So, the data is held in BLOCKS which are CHAINed together Now VERY difficult to change an earlier entry as all of the hashes on all pages would need to be recalculated
- 27. …Giving a Private, Permissioned Ledger Metro Bank You can restrict access only to members…
- 28. …Giving a Public, Unpermissioned Ledger You can provide open access to everybody…
- 29. It’s a write-only database That everyone has an identical copy of With all entries timestamped And the data is cryptographically secured So, back to the definition…. Which means: • A complete history of all transactions - great audit trail • Everyone has a copy of the same thing - No need for reconciliation • It’s highly distributed – Makes it cyber-resistant • Data is cryptographically secured – overcomes security issues
- 30. Agenda 1. Introductions 2. Foe? 3. Targets 4. Vectors 5. Blockchain Primer 6. Friend 7. Q & A
- 31. Vectors
- 33. Agenda 1. Introductions 2. Foe? 3. Targets 4. Vectors 5. Blockchain Primer 6. Friend 7. Q & A
- 34. Q & A
- 35. Q & A 35 © Distlytics Ltd 2017 Thank you! Gary Nuttall contact details: eMail: gnuttall@distlytics.com Twitter: @GPN01 LinkedIn:uk.linkedin.com/in/garynuttall Web: www.Distlytics.com www.linkedin.com/in/garynuttall www.linkedin.com/in/garynuttall www.linkedin.com/in/garynuttall