Episode 10 - Detecting and Preventing Phishing Attacks
Description
Quotes:
"Phishing targets the human element, the 'wetware,' often the weakest link in any security chain." - Clint Marsden
"Phishing isn't just about poorly spelled emails anymore; it's about sophisticated campaigns that even cyber-aware individuals can fall victim to." - Clint Marsden
"Effective defense against phishing involves not just technology but ongoing education and a culture of security awareness." - Clint Marsden
Key Takeaways:
- Phishing attacks continue to evolve and remain a significant cybersecurity threat despite advances in technology.
- Attackers leverage sophisticated techniques including AI and social engineering to exploit human psychology.
- Effective defense strategies involve a multi-layered approach including user education, advanced email gateway technologies, and stringent access controls.
Action Points:
- Implement ongoing and evolving user education programs to enhance awareness of phishing tactics.
- Ensure email gateways are configured with DKIM, SPF, and DMARC protocols, and ensure the SEG is tuned appropriately to filter out malicious emails
- Follow the Essential 8 guidelines, focusing on restricting Microsoft Office macros and restricting admin privileges. If you've got the capacity, go straight into application control.
- Implement multi-factor authentication (MFA) across all public-facing and internal systems to add an additional layer of security against phishing attempts.
Links and references:
Mitre ATT&CK - Phishing
https://attack.mitre.org/techniques/T1566/
ASD Essential 8:
https://www.cyber.gov.au/resources-business-and-government/essential-cyber-security/essential-eight
IDN Homograph attacks:
https://shahjerry33.medium.com/idn-homograph-attack-reborn-of-the-rare-case-99fa1e342352
Phishing Landscape 2023 by Interisle Consulting and APWG:
https://www.interisle.net/PhishingLandscape2023.pdf
Anti Phishing Working Group:
https://apwg.org/trendsreports/