ICS Security Blog
Technical deep-dives on OT/ICS cybersecurity — protocols, attacks, and defenses.
Protocol
Modbus Security Vulnerabilities: No Auth, No Encryption, No Problem?
Why Modbus TCP is the easiest protocol to exploit in an ICS network — and what you can actually do about it.
ProtocolDNP3 Secure Authentication v5 Explained
How SA v5 protects SCADA communications with HMAC-SHA-256 — and why so many utilities still haven't deployed it.
AttackIEC 61850 GOOSE Spoofing: How Attackers Trip Circuit Breakers
GOOSE messages trip breakers in under 4ms. In Edition 1 and 2, anyone on the substation LAN can send one.