Loopbacs

10/08/2026

18-Year-Old Linux SCTP Flaw Could Let Local Users Gain Root and Escape Containers .
The flaw has existed since 2008. The fix already shipped: stable kernels 7.1.6, 6.18.42, 6.12.101 and 6.6.148, released August 3, close it. Anyone running an older kernel with SCTP reachable should update.
https://thehackernews.com/2026/08/18-year-old-linux-sctp-flaw-could-let.html

Linux SCTP flaw CVE-2026-64564 dates back to 2008 and Tencent researchers say it could escape containers and gain host root.

09/08/2026

If you manage a team of Linux admins or DevOps engineers, forward this to them.

The SSH Complete Course on Pro TecMint covers everything from basics to enterprise Zero-Trust.

54 chapters of the kind of knowledge that usually takes years of production experience to accumulate.

→ https://pro.tecmint.com/ssh-complete-course/

28/07/2026

Free OSINT Courses 📌

1. Learn OSINT in 4.5h by Heath Adams: https://lnkd.in/d9-dUPV3

2. OSINT At Home by Benjamin S.: https://lnkd.in/d7QE3sT9

3. 10 Minute OSINT Tips by The OSINT Curious Project: https://lnkd.in/dnWmEqh4

4. Complete OSINT Exercises Walkthroughs by Sofia Santos: https://lnkd.in/d7awBizm

5. OSINT Training by Motasem Hamdan: https://lnkd.in/duuzdNzj

6. OSINT Course by David Pereira: https://lnkd.in/dxB3asCH

7. The Complete OSINT Course by Irfan Shakeel: https://lnkd.in/dQMQtBuT

8. OSINT Tutorials by TechChip: https://lnkd.in/dwJd7Z_P

9. Open Source Intelligence by Hackers Arise: https://lnkd.in/deyYntrX

10. Dark Web Foundation: A Guide to the Deep/Dark Web 2019 by Dark Web Academy: https://lnkd.in/d2tXvEFN

11. OSINT Tutorials by Null Byte: https://lnkd.in/dEQhiyWQ

12. OSINT Workshop by Andrew Fordred: https://lnkd.in/dBXC9CgZ

27/07/2026

Gain real SOC experience… without working in a SOC!

Today, many people want to acquire practical skills in Security Operations Centers, but don't always have the opportunity to immediately join a SOC team.

Good news: Google offers 8 100% FREE SOC training courses, with hands-on labs that allow you to develop real BlueTeam skills.

1️⃣ Fundamentals – https://lnkd.in/exvHk6h2
2️⃣ Deep Dive – https://lnkd.in/e3kiJ93J
3️⃣ Modern SecOps – https://lnkd.in/eWYR6tpc
4️⃣ SIEM Practices – https://lnkd.in/d2U-sgG8
5️⃣ SOAR Fundamentals – https://lnkd.in/d2U-sgG8
6️⃣ SIEM Rules – https://lnkd.in/d2U-sgG8
7️⃣ SOAR Analyst – https://lnkd.in/dFCRzHgQ
8️⃣ SOAR Developer – https://lnkd.in/dgfWZSp3

26/07/2026

5 free AI courses every engineer should take in 2026.

Read that again. It's 100% Free.

No paid subscription. Just open and learn.

The first 4 courses target beginner to intermediate learners.

The last one is where intermediate ends and real AI engineering begins.
Save this for later.

Agentic AI with LangChain and LangGraph On Coursera.
→ https://lnkd.in/gYTHp8CK

RAG: Build Apps with LangChain and LlamaIndex By IBM on edX.
→ https://lnkd.in/g2ztBREJ

MCP: Build Rich-Context AI Apps with Anthropic By the team that built Claude.
→ https://lnkd.in/gRN2T7bF

Agentic AI with LangGraph, CrewAI, AutoGen and BeeAI By IBM on Coursera.
→ https://lnkd.in/grszgUHT

IBM RAG and Agentic AI Professional Certificate
→ https://lnkd.in/gCV5YJZH

Send a message to learn more

17/05/2026

Prompt Engineering vs Context Engineering

13/05/2026

Calibrating The System Prompt

12/05/2026

|| The Email Deliverability Audit and Remediation Roadmap ||
From Spam Folder to Primary Inbox
A Real Email Deliverability Case Study on how strategic audit.