EP 82: Kerberos in OT: RC4 Downgrade Attacks

EP 82: Kerberos in OT: RC4 Downgrade Attacks

From Error Code by Robert Vamosi

March 4, 2026 · 27 min · Episode 83

About this episode

Dor Segal discusses the risks associated with Kerberos in operational technology environments, including various attack vectors and the importance of identity security.

Kerberos, a decades-old authentication protocol, creates hidden risks in OT environments. Dor Segal, security researcher team lead at Silverfort, discusses delegation abuse, cipher downgrade attacks, and person-in-the-middle threats—highlighting why legacy encryption, patching challenges, and operational constraints make identity security critical in industrial networks.

People in this episode

Host: Robert Vamosi

Guest: Dor Segal

Topics covered

  • Kerberos
  • OT environments
  • authentication protocol
  • cybersecurity
  • identity security
  • encryption
  • industrial networks

Keywords

  • Kerberos
  • OT environments
  • RC4 Downgrade Attacks
  • encryption
  • identity security
  • cybersecurity
  • delegation abuse
  • cipher downgrade attacks
  • person-in-the-middle threats

Mentioned in this episode

Organizations: Silverfort

Products: Kerberos

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