---
id: 7340
title: "Security wall of S7CommPlus - Part 1"
source_domain: blog.viettelcybersecurity.com
source_url: "https://blog.viettelcybersecurity.com/security-wall-of-s7commplus-part-1/"
published_at: "2022-12-08T10:10:50Z"
tags: ["wireshark", "protocol-analysis", "s7commplus", "siemens", "plc", "ics-security"]
phying_url: "https://phying.com/item/7340"
lang: en
---

# Security wall of S7CommPlus - Part 1

## Summary

Part one of the S7CommPlus series dissects the protocol protecting newer Siemens PLCs: OSI layering, packet structure, and the 32-byte Integrity field, demonstrated on an S7-1200 with TIA Portal.

## Intelligence Metadata

- **Sources:** blog.viettelcybersecurity.com
- **Published:** 2022-12-08T10:10:50Z
- **Original:** https://blog.viettelcybersecurity.com/security-wall-of-s7commplus-part-1/
- **Phying News:** https://phying.com/item/7340