Cyber Edition

SOC Incident response interview questions

Oracle Acknowledges Data Breach and Starts Informing Affected Clients Oracle Corporation has confirmed a data breach involving its older Gen 1 servers, marking the second cybersecurity incident disclosed by the company in recent weeks. The breach, initially reported by a threat actor on Breachforums on March 20, 2025, has raised concerns about the security of Oracle’s cloud infrastructure and its ability to safeguard sensitive client data. The threat actor, identified as “rose87168,” claimed responsibility for the breach and alleged access to 6 million data records. The stolen data reportedly includes usernames, email addresses, hashed passwords, and sensitive authentication credentials such as Single Sign-On (SSO) and Lightweight Directory Access Protocol (LDAP) information.

Equip your team with #ANYRUN interactive malware analysis in secure, private Windows & Android VMs. Try 14-day Free Trial ->  https://lnkd.in/gtRhp55F

🐧 Understanding the Linux File System Structure 📂 Ever wondered how Linux organizes its files and directories? Unlike Windows, which uses drive letters (C:, D:), Linux follows a hierarchical directory structure, starting from the root (/) directory. 💡 Key Directories in Linux: 📂 /bin – Essential binaries (commands like ls, cp, mv) 📂 /boot – Stores bootloader files and kernel images 📂 /dev – Contains device files for hardware components 📂 /etc – System configuration files 🛠 📂 /home – User home directories 🏠 📂 /var – Logs, caches, and variable data 📂 /tmp – Temporary files 🕒 📂 /root – Home directory for the root user 📂 /proc & /sys – Virtual files for system processes and hardware 🔍 Why Does This Matter? ✔ Improves file organization & system security ✔ Enhances system performance & troubleshooting ✔ Crucial for Linux admins, developers & cybersecurity professionals 🚀 How well do you know your Linux file system? Share your favorite Linux command below! ⬇ #Linux

🌐 How Does NAT Work? Simplifying Network Connectivity 🔀 Network Address Translation (NAT) is the backbone of modern internet communication, allowing multiple devices in a private network to share a single public IP address. This is critical for both businesses and ISPs to efficiently manage IPv4 address limitations. 💡 Why is NAT Important? ✅ Enables multiple devices to connect to the internet using one public IP ✅ Enhances security by masking internal IP addresses ✅ Helps conserve IPv4 addresses due to limited availability ✅ Facilitates seamless communication between private and public networks 🛠 How It Works: 📌 Private IP requests access to the internet 📌 The NAT-enabled router translates it to a public IP 📌 The response is routed back using NAT table mappings 📌 The internal device receives the response without exposing its real IP 🔍 Are you using NAT in your network setup? Let’s discuss its impact in the comments! ⬇

🔐 Top YouTube Channels to Learn Cybersecurity! 🖥️🚀 Looking to dive into ethical hacking, bug bounties, malware analysis, or cloud security? 🛡️ This list curated by Cyber Edition 📚 has got you covered! 🔥 Best Cybersecurity YouTube Channels by Category: ✅ General Cybersecurity – Stay updated with Hak5, David Bombal, Black Hills InfoSec, and more! ✅ Bug Bounty & Ethical Hacking – Master hacking techniques with The XSS Rat, InsiderPHD, NahamSec, etc. ✅ Certifications & Career Growth – Ace your exams with Professor Messer, Simply Cyber, Outpost Gray 🎓 ✅ Web & Cloud Security – Learn from OWASP Foundation, Security Now, Day CyberWox 🌐☁️ ✅ Offensive Security & Pentesting – Sharpen your red teaming skills with SANS Offensive Operations, Offensive Security 🔥 ✅ Malware Analysis & Forensics – Decode threats with John Hammond, 13Cubed, BlackPerl 🕵️♂️ 📢 Whether you're a beginner or a pro, these channels provide top-tier knowledge to upskill in cybersecurity. 💡 Which YouTube channel is your favorite? Drop a comment! ⬇️ #CyberSecurity #EthicalHacking #BugBounty #Infosec #LearnHacking #CyberEdition

Equip your team with #ANYRUN interactive malware analysis in secure, private Windows & Android VMs. Try 14-day Free Trial-> https://lnkd.in/gG8aXBPa

🛡️ Top 10 Authentication Methods You Should Know! 🔐 In today’s digital world, relying solely on passwords just doesn’t cut it anymore. Here’s a breakdown of 10 modern authentication methods – each playing a critical role in keeping systems and data secure 👇 1️⃣ Password-Based Authentication – Basic but vulnerable. Just username & password. 2️⃣ Two-Factor Authentication (2FA) – Adds an extra layer like a code or app verification. 3️⃣ Multi-Factor Authentication (MFA) – Combines two or more factors: password + device + biometrics. 4️⃣ Biometric Authentication – Think fingerprints, facial scans, or iris recognition 👁️. 5️⃣ Token-Based Authentication – Uses hardware or software tokens to generate login codes 🔐. 6️⃣ Certificate-Based Authentication – Uses digital certificates to verify identity, often in enterprises. 7️⃣ Single Sign-On (SSO) – One login grants access to many systems (hello, convenience!) 🖥️➡️🖥️. 8️⃣ Smart Card Authentication – Physical card + PIN to authenticate, common in government/enterprise 💳. 9️⃣ OAuth/OpenID Connect – Third-party logins (like "Login with Google") for seamless access 🌐. 🔟 Behavioral Authentication – Analyzes user behavior (typing speed, mouse movement) for silent authentication 🧠🖱️. 🔍 Why it matters: The right authentication method can prevent data breaches, protect user identity, and boost trust in your platform. Always pair authentication with good security hygiene and, if possible, layered defenses. 💡 👇 Let’s talk! Which method is your go-to in projects or at your workplace? Or which one do you see becoming more dominant in the next few years?

🔐 Secure Authentication Methods – Explained Visually! 💻✨ Understanding authentication is key 🔑 to building secure systems, whether you're a developer, security analyst, or tech enthusiast. Here's a powerful breakdown of 4 major authentication methods—explained step-by-step with visuals 🧠💡: 1️⃣ SSH Key 🧾🔑 No passwords involved! This method uses public-private key pairs. The server verifies identity by decrypting a hash with the client’s public key, confirming the authenticity before establishing a secure session. 2️⃣ Credentials (Username & Password) 👤🔐 The most common yet most targeted method. Credentials are shared directly and validated by the server. Simpler but more vulnerable without extra layers like MFA or encryption. 3️⃣ OAuth 2.0 🔁🪪 Common in modern web and mobile apps (e.g., "Login with Google"). It delegates access using tokens from an authorization server – so the user’s credentials are never shared directly with third-party apps. 4️⃣ SSL Certificate 📜🔒 Used to encrypt communication between client and server. Certificates issued by trusted Certificate Authorities (CA) validate the identity of both parties, keeping data secure during transmission (like in HTTPS). 🚀 Whether you're securing APIs, deploying cloud infrastructure, or protecting user data – understanding these authentication mechanisms is crucial for a safer digital world. 💬 Which method do you use the most? Or which one do you find most secure? Let’s discuss in the comments! 👇

🛡️🔍 VPNs Explained: Your First Line of Digital Defense! 🌐🔐 Understand How VPNs Protect You in a Connected World Ever wondered how your online identity stays safe while using public Wi-Fi or working remotely? 🤔 That’s where a VPN (Virtual Private Network) steps in — it creates a secure tunnel between your device and the internet, hiding your IP, encrypting data in real-time, and shielding you from prying eyes 👀. 👇 This visual guide breaks it all down: ✅ What is a VPN? A secure connection that encrypts your traffic, disguises your identity, and protects your data from hackers, ISPs, or any third parties. 📡 How does a VPN work? Your data goes from your device → to the VPN client → through a secure tunnel → to the VPN server → and finally reaches the internet 🌍 — keeping your communication private at every step. 🔧 Types of VPN Protocols: From OpenVPN to WireGuard, these protocols define how your traffic is encrypted and transmitted. Choose wisely depending on speed, security, and compatibility! 🌐 Types of VPNs: 🔄 Site-to-Site 🧑💻 Remote Access ☁️ Cloud VPN 🔐 SSL VPN 🧅 Double VPN (extra anonymity!) 💡 Why it matters: In today’s world of hybrid work, constant connectivity, and rising cyber threats, understanding and using VPNs is no longer optional—it’s essential. 🔁 Save & Share this Visual to raise awareness and help others protect their digital footprint!