#denizhalil — Public Fediverse posts

Exploitation of PAN-OS GlobalProtect Authentication Bypass Vulnerability (CVE-2026-0257)

In this article, I break down how the vulnerability works, affected configurations, exploitation scenarios, and the mitigation steps organizations should take to protect their remote access infrastructure.

https://denizhalil.com/2026/06/02/cve-2026-0257-pan-os-globalprotect-authentication-bypass/

#CyberSecurity #PaloAlto #GlobalProtect #PANOS #CVE20260257 #VulnerabilityManagement #ThreatDetection #NetworkSecurity #BlueTeam #RedTeam #InfoSec #DenizHalil

Exploitation of PAN-OS GlobalProtect Authentication Bypass Vulnerability (CVE-2026-0257)

In this article, I break down how the vulnerability works, affected configurations, exploitation scenarios, and the mitigation steps organizations should take to protect their remote access infrastructure.

https://denizhalil.com/2026/06/02/cve-2026-0257-pan-os-globalprotect-authentication-bypass/

#CyberSecurity #PaloAlto #GlobalProtect #PANOS #CVE20260257 #VulnerabilityManagement #ThreatDetection #NetworkSecurity #BlueTeam #RedTeam #InfoSec #DenizHalil

Shodan Dork Cheat Sheet

In this cheat sheet, I cover useful Shodan search queries, filtering techniques, and practical reconnaissance workflows for cybersecurity assessments
https://denizhalil.com/2023/12/19/shodan-dork-cheat-sheet/

#CyberSecurity #Shodan #OSINT #Reconnaissance #AttackSurface #ThreatIntelligence #Pentesting #RedTeam #InfoSec #EthicalHacking #SecurityResearch #DenizHalil

Shodan Dork Cheat Sheet

In this cheat sheet, I cover useful Shodan search queries, filtering techniques, and practical reconnaissance workflows for cybersecurity assessments
https://denizhalil.com/2023/12/19/shodan-dork-cheat-sheet/

#CyberSecurity #Shodan #OSINT #Reconnaissance #AttackSurface #ThreatIntelligence #Pentesting #RedTeam #InfoSec #EthicalHacking #SecurityResearch #DenizHalil

Shodan Dork Cheat Sheet

In this cheat sheet, I cover useful Shodan search queries, filtering techniques, and practical reconnaissance workflows for cybersecurity assessments
https://denizhalil.com/2023/12/19/shodan-dork-cheat-sheet/

#CyberSecurity #Shodan #OSINT #Reconnaissance #AttackSurface #ThreatIntelligence #Pentesting #RedTeam #InfoSec #EthicalHacking #SecurityResearch #DenizHalil

What is Web Security and Web Penetration Testing Tools

In this article, I cover essential web penetration testing tools and how they fit into different stages of the assessment process.
https://denizhalil.com/2024/12/19/web-penetration-testing-tools/

#CyberSecurity #WebSecurity #Pentesting #BurpSuite #Nmap #SQLMap #BugBounty #RedTeam #InfoSec #EthicalHacking #SecurityTools #DenizHalil

What is Web Security and Web Penetration Testing Tools

In this article, I cover essential web penetration testing tools and how they fit into different stages of the assessment process.
https://denizhalil.com/2024/12/19/web-penetration-testing-tools/

#CyberSecurity #WebSecurity #Pentesting #BurpSuite #Nmap #SQLMap #BugBounty #RedTeam #InfoSec #EthicalHacking #SecurityTools #DenizHalil

What is Web Security and Web Penetration Testing Tools

In this article, I cover essential web penetration testing tools and how they fit into different stages of the assessment process.
https://denizhalil.com/2024/12/19/web-penetration-testing-tools/

#CyberSecurity #WebSecurity #Pentesting #BurpSuite #Nmap #SQLMap #BugBounty #RedTeam #InfoSec #EthicalHacking #SecurityTools #DenizHalil

What is Silver Ticket Attack: A Comprehensive Guide

In this article, I cover how Silver Ticket attacks work, common exploitation scenarios, detection techniques, and mitigation strategies.
https://denizhalil.com/2026/05/27/silver-ticket-attack-comprehensive-guide/

#CyberSecurity #ActiveDirectory #SilverTicket #Kerberos #CredentialAccess #RedTeam #BlueTeam #Pentesting #WindowsSecurity #InfoSec #ThreatDetection #DenizHalil

What is Silver Ticket Attack: A Comprehensive Guide

In this article, I cover how Silver Ticket attacks work, common exploitation scenarios, detection techniques, and mitigation strategies.
https://denizhalil.com/2026/05/27/silver-ticket-attack-comprehensive-guide/

#CyberSecurity #ActiveDirectory #SilverTicket #Kerberos #CredentialAccess #RedTeam #BlueTeam #Pentesting #WindowsSecurity #InfoSec #ThreatDetection #DenizHalil

What is Silver Ticket Attack: A Comprehensive Guide

In this article, I cover how Silver Ticket attacks work, common exploitation scenarios, detection techniques, and mitigation strategies.
https://denizhalil.com/2026/05/27/silver-ticket-attack-comprehensive-guide/

#CyberSecurity #ActiveDirectory #SilverTicket #Kerberos #CredentialAccess #RedTeam #BlueTeam #Pentesting #WindowsSecurity #InfoSec #ThreatDetection #DenizHalil

Kerbrute: Enumerating Active Directory Accounts

In this article, I cover how Kerberoasting works, common attack techniques, detection methods, and practical defense strategies.

🔗 https://denizhalil.com/2026/05/21/kerberoasting-attack-defense-guide/

#CyberSecurity #ActiveDirectory #Kerberoasting #Kerberos #CredentialAccess #RedTeam #BlueTeam #Pentesting #WindowsSecurity #InfoSec #ThreatDetection #DenizHalil

Kerbrute: Enumerating Active Directory Accounts

In this article, I cover how Kerberoasting works, common attack techniques, detection methods, and practical defense strategies.

🔗 https://denizhalil.com/2026/05/21/kerberoasting-attack-defense-guide/

#CyberSecurity #ActiveDirectory #Kerberoasting #Kerberos #CredentialAccess #RedTeam #BlueTeam #Pentesting #WindowsSecurity #InfoSec #ThreatDetection #DenizHalil

Basic Active Directory Enumeration: A Comprehensive Guide

In this article, I cover how Kerberoasting works, common attack techniques, detection methods, and practical defense strategies.
https://denizhalil.com/2025/05/05/basic-active-directory-enumeration-a-comprehensive-guide/

#CyberSecurity #ActiveDirectory #Kerberoasting #Kerberos #CredentialAccess #RedTeam #BlueTeam #Pentesting #WindowsSecurity #InfoSec #ThreatDetection #DenizHalil

Basic Active Directory Enumeration: A Comprehensive Guide

In this article, I cover how Kerberoasting works, common attack techniques, detection methods, and practical defense strategies.
https://denizhalil.com/2025/05/05/basic-active-directory-enumeration-a-comprehensive-guide/

#CyberSecurity #ActiveDirectory #Kerberoasting #Kerberos #CredentialAccess #RedTeam #BlueTeam #Pentesting #WindowsSecurity #InfoSec #ThreatDetection #DenizHalil

Basic Active Directory Enumeration: A Comprehensive Guide

In this article, I cover how Kerberoasting works, common attack techniques, detection methods, and practical defense strategies.
https://denizhalil.com/2025/05/05/basic-active-directory-enumeration-a-comprehensive-guide/

#CyberSecurity #ActiveDirectory #Kerberoasting #Kerberos #CredentialAccess #RedTeam #BlueTeam #Pentesting #WindowsSecurity #InfoSec #ThreatDetection #DenizHalil

What is Kerberoasting Attack – Kerberoasting: A Comprehensive Guide

In this article, I cover how Kerberoasting works, common attack techniques, detection methods, and practical defense strategies.
https://denizhalil.com/2026/05/21/kerberoasting-attack-defense-guide/

#CyberSecurity #ActiveDirectory #Kerberoasting #Kerberos #CredentialAccess #RedTeam #BlueTeam #Pentesting #WindowsSecurity #InfoSec #ThreatDetection #DenizHalil

What is Kerberoasting Attack – Kerberoasting: A Comprehensive Guide

In this article, I cover how Kerberoasting works, common attack techniques, detection methods, and practical defense strategies.
https://denizhalil.com/2026/05/21/kerberoasting-attack-defense-guide/

#CyberSecurity #ActiveDirectory #Kerberoasting #Kerberos #CredentialAccess #RedTeam #BlueTeam #Pentesting #WindowsSecurity #InfoSec #ThreatDetection #DenizHalil

What is Kerberoasting Attack – Kerberoasting: A Comprehensive Guide

In this article, I cover how Kerberoasting works, common attack techniques, detection methods, and practical defense strategies.
https://denizhalil.com/2026/05/21/kerberoasting-attack-defense-guide/

#CyberSecurity #ActiveDirectory #Kerberoasting #Kerberos #CredentialAccess #RedTeam #BlueTeam #Pentesting #WindowsSecurity #InfoSec #ThreatDetection #DenizHalil

Responder Tool for Network Credential Capture in Active Directory

In this article, I cover how Responder works, common credential capture techniques, and practical mitigation strategies for defending Active Directory environments.

https://denizhalil.com/2026/05/18/responder-tool-active-directory-credential-capture/

#CyberSecurity #ActiveDirectory #Responder #LLMNR #NTLM #CredentialCapture #RedTeam #BlueTeam #Pentesting #WindowsSecurity #InfoSec #EthicalHacking #DenizHalil

Responder Tool for Network Credential Capture in Active Directory

In this article, I cover how Responder works, common credential capture techniques, and practical mitigation strategies for defending Active Directory environments.

https://denizhalil.com/2026/05/18/responder-tool-active-directory-credential-capture/

#CyberSecurity #ActiveDirectory #Responder #LLMNR #NTLM #CredentialCapture #RedTeam #BlueTeam #Pentesting #WindowsSecurity #InfoSec #EthicalHacking #DenizHalil

Responder Tool for Network Credential Capture in Active Directory

In this article, I cover how Responder works, common credential capture techniques, and practical mitigation strategies for defending Active Directory environments.

https://denizhalil.com/2026/05/18/responder-tool-active-directory-credential-capture/

#CyberSecurity #ActiveDirectory #Responder #LLMNR #NTLM #CredentialCapture #RedTeam #BlueTeam #Pentesting #WindowsSecurity #InfoSec #EthicalHacking #DenizHalil

Sending ICMP Packets with Python Socket: Adventure in Signaling

In this article, I demonstrate how to craft and send ICMP packets using Python raw sockets, covering packet structure, checksum calculation, and low-level network communication.

https://denizhalil.com/2024/04/06/sending-icmp-packets-with-python-socket-adventure-in-signaling/

#CyberSecurity #Python #ICMP #SocketProgramming #NetworkSecurity #PacketCrafting #RawSockets #InfoSec #EthicalHacking #NetworkProgramming #DenizHalil

Sending ICMP Packets with Python Socket: Adventure in Signaling

In this article, I demonstrate how to craft and send ICMP packets using Python raw sockets, covering packet structure, checksum calculation, and low-level network communication.

https://denizhalil.com/2024/04/06/sending-icmp-packets-with-python-socket-adventure-in-signaling/

#CyberSecurity #Python #ICMP #SocketProgramming #NetworkSecurity #PacketCrafting #RawSockets #InfoSec #EthicalHacking #NetworkProgramming #DenizHalil

Linux Security Auditing with Lynis

In this article, I cover how to use Lynis for Linux security auditing, system hardening, and practical vulnerability assessment.

🔗 https://denizhalil.com/2025/03/17/linux-security-auditing-with-lynis/

#CyberSecurity #LinuxSecurity #Lynis #SecurityAuditing #SystemHardening #BlueTeam #DevSecOps #InfoSec #Linux #ITSecurity #SecurityEngineering #DenizHalil

Linux Security Auditing with Lynis

In this article, I cover how to use Lynis for Linux security auditing, system hardening, and practical vulnerability assessment.

🔗 https://denizhalil.com/2025/03/17/linux-security-auditing-with-lynis/

#CyberSecurity #LinuxSecurity #Lynis #SecurityAuditing #SystemHardening #BlueTeam #DevSecOps #InfoSec #Linux #ITSecurity #SecurityEngineering #DenizHalil

Linux Security Auditing with Lynis

In this article, I cover how to use Lynis for Linux security auditing, system hardening, and practical vulnerability assessment.

https://denizhalil.com/2025/03/17/linux-security-auditing-with-lynis/

#CyberSecurity #LinuxSecurity #Lynis #SecurityAuditing #SystemHardening #BlueTeam #DevSecOps #InfoSec #Linux #ITSecurity #SecurityEngineering #DenizHalil

Linux Security Auditing with Lynis

In this article, I cover how to use Lynis for Linux security auditing, system hardening, and practical vulnerability assessment.

https://denizhalil.com/2025/03/17/linux-security-auditing-with-lynis/

#CyberSecurity #LinuxSecurity #Lynis #SecurityAuditing #SystemHardening #BlueTeam #DevSecOps #InfoSec #Linux #ITSecurity #SecurityEngineering #DenizHalil

UDP Network Monitoring with C++: A Comprehensive Guide

In this guide, I demonstrate how to build a UDP packet sniffer in C++ using raw sockets, parse packet headers, and extract key data like source/destination IPs and ports.
https://denizhalil.com/2025/07/14/udp-network-monitoring-cpp-packet-sniffer/

#CyberSecurity #NetworkMonitoring #PacketSniffer #UDP #Cpp #NetworkSecurity #InfoSec #BlueTeam #RedTeam #InfoSec #securityengineering #denizhalil

UDP Network Monitoring with C++: A Comprehensive Guide

In this guide, I demonstrate how to build a UDP packet sniffer in C++ using raw sockets, parse packet headers, and extract key data like source/destination IPs and ports.
https://denizhalil.com/2025/07/14/udp-network-monitoring-cpp-packet-sniffer/

#CyberSecurity #NetworkMonitoring #PacketSniffer #UDP #Cpp #NetworkSecurity #InfoSec #BlueTeam #RedTeam #InfoSec #securityengineering #denizhalil

UDP Network Monitoring with C++: A Comprehensive Guide

In this guide, I demonstrate how to build a UDP packet sniffer in C++ using raw sockets, parse packet headers, and extract key data like source/destination IPs and ports.
https://denizhalil.com/2025/07/14/udp-network-monitoring-cpp-packet-sniffer/

#CyberSecurity #NetworkMonitoring #PacketSniffer #UDP #Cpp #NetworkSecurity #InfoSec #BlueTeam #RedTeam #InfoSec #securityengineering #denizhalil

Spoofing Packets with Scapy: A Comprehensive Guide

In this article, I cover how packet spoofing works with Scapy, practical use cases, and key security implications.
https://denizhalil.com/2025/07/22/spoofing-packets-with-scapy-a-comprehensive-guide/

#CyberSecurity #Scapy #PacketSpoofing #NetworkSecurity #Python #EthicalHacking #RedTeam #BlueTeam #Pentesting #InfoSec #SecurityEngineering #denizhalil

Spoofing Packets with Scapy: A Comprehensive Guide

In this article, I cover how packet spoofing works with Scapy, practical use cases, and key security implications.
https://denizhalil.com/2025/07/22/spoofing-packets-with-scapy-a-comprehensive-guide/

#CyberSecurity #Scapy #PacketSpoofing #NetworkSecurity #Python #EthicalHacking #RedTeam #BlueTeam #Pentesting #InfoSec #SecurityEngineering #denizhalil

Cybersecurity Interview Questions and Answer Tips

In this article, I cover the most common cybersecurity interview questions and how to approach them effectively.

https://denizhalil.com/2025/12/08/cybersecurity-interview-questions-2025/

#CyberSecurity #InfoSec #CyberSecurityCareer #InterviewPrep #SOC #RedTeam #BlueTeam #ITSecurity #CareerDevelopment #EthicalHacking #SecurityEngineering #denizhalil

Cybersecurity Interview Questions and Answer Tips

In this article, I cover the most common cybersecurity interview questions and how to approach them effectively.

https://denizhalil.com/2025/12/08/cybersecurity-interview-questions-2025/

#CyberSecurity #InfoSec #CyberSecurityCareer #InterviewPrep #SOC #RedTeam #BlueTeam #ITSecurity #CareerDevelopment #EthicalHacking #SecurityEngineering #denizhalil

Mastering Linux Firewalls: A Deep Dive into Netfilter and iptables

In this article, I cover how iptables works, its architecture, and practical firewall configuration techniques.
https://denizhalil.com/2025/12/31/netfilter-iptables-firewall-configuration-guide/

#CyberSecurity #LinuxSecurity #iptables #Netfilter #NetworkSecurity #Firewall #InfoSec #BlueTeam #DevSecOps #securityengineering #ITSecurity #denizhalil

Mastering Linux Firewalls: A Deep Dive into Netfilter and iptables

In this article, I cover how iptables works, its architecture, and practical firewall configuration techniques.
https://denizhalil.com/2025/12/31/netfilter-iptables-firewall-configuration-guide/

#CyberSecurity #LinuxSecurity #iptables #Netfilter #NetworkSecurity #Firewall #InfoSec #BlueTeam #DevSecOps #securityengineering #ITSecurity #denizhalil

What are Pass-the-Hash and Pass-the-Ticket Attacks: A Comprehensive Guide

In this article, I cover how these attacks work, their differences, and how to detect and mitigate them.
https://denizhalil.com/2026/01/05/pass-the-hash-pass-the-ticket-attacks-guide/

#cybersecurity #ActiveDirectory #PassTheHash #PassTheTicket #credentialaccess #RedTeam #BlueTeam #Pentesting #InfoSec #WindowsSecurity #EthicalHacking #ITSecurity #denizhalil

What are Pass-the-Hash and Pass-the-Ticket Attacks: A Comprehensive Guide

In this article, I cover how these attacks work, their differences, and how to detect and mitigate them.
https://denizhalil.com/2026/01/05/pass-the-hash-pass-the-ticket-attacks-guide/

#cybersecurity #ActiveDirectory #PassTheHash #PassTheTicket #credentialaccess #RedTeam #BlueTeam #Pentesting #InfoSec #WindowsSecurity #EthicalHacking #ITSecurity #denizhalil

What is NetBIOS and SMB Exploitation Techniques: A Practical Guide

In this article, I cover key exploitation techniques, real-world attack scenarios, and how to secure these services effectively.

https://denizhalil.com/2026/01/15/netbios-smb-exploitation-techniques-guide/

#CyberSecurity #SMB #NetBIOS #NetworkSecurity #ActiveDirectory #RedTeam #BlueTeam #Pentesting #InfoSec #WindowsSecurity #EthicalHacking #ITSecurity #DenizHalil

What is NetBIOS and SMB Exploitation Techniques: A Practical Guide

In this article, I cover key exploitation techniques, real-world attack scenarios, and how to secure these services effectively.

https://denizhalil.com/2026/01/15/netbios-smb-exploitation-techniques-guide/

#CyberSecurity #SMB #NetBIOS #NetworkSecurity #ActiveDirectory #RedTeam #BlueTeam #Pentesting #InfoSec #WindowsSecurity #EthicalHacking #ITSecurity #DenizHalil

What is SNMP Security and Exploitation: A Comprehensive Guide

In this article, I cover how SNMP exploitation works, common vulnerabilities, and how to properly secure it.
https://denizhalil.com/2026/01/21/snmp-security-exploitation-guide

#CyberSecurity #SNMP #NetworkSecurity #InfoSec #InfrastructureSecurity #BlueTeam #RedTeam #Pentesting #ITSecurity #SecurityEngineering #DenizHalil

What is SNMP Security and Exploitation: A Comprehensive Guide

In this article, I cover how SNMP exploitation works, common vulnerabilities, and how to properly secure it.
https://denizhalil.com/2026/01/21/snmp-security-exploitation-guide

#CyberSecurity #SNMP #NetworkSecurity #InfoSec #InfrastructureSecurity #BlueTeam #RedTeam #Pentesting #ITSecurity #SecurityEngineering #DenizHalil

What is DCSync Attack and Mimikatz Usage in Active Directory

One of the most critical attacks in Active Directory environments, DCSync, allows attackers to impersonate a Domain Controller and extract password hashes through replication abuse.

#CyberSecurity #ActiveDirectory #DCSync #RedTeam #BlueTeam #InfoSec #Pentesting #SOC #ThreatDetection #WindowsSecurity #EthicalHacking #ITSecurity #NetworkSecurity #SecurityOperations #DenizHalil

https://denizhalil.com/2026/03/27/dcsync-attack-active-directory-guide/

What is DCSync Attack and Mimikatz Usage in Active Directory

One of the most critical attacks in Active Directory environments, DCSync, allows attackers to impersonate a Domain Controller and extract password hashes through replication abuse.

#CyberSecurity #ActiveDirectory #DCSync #RedTeam #BlueTeam #InfoSec #Pentesting #SOC #ThreatDetection #WindowsSecurity #EthicalHacking #ITSecurity #NetworkSecurity #SecurityOperations #DenizHalil

https://denizhalil.com/2026/03/27/dcsync-attack-active-directory-guide/

Hello everyone.

In today's article, I have listed the best items to enter the world of coding.

I wish everyone a pleasant reading

https://denizhalil.com/2024/08/01/step-step-learning-programming/

#programming #roadmap #learningcoding #code #denizhalil #programming #coder

Hello everyone, do not forget to check out the books I have written about and the books that helped me in my journey of learning Python, which are in my library.

https://denizhalil.com/2024/04/11/learn-python-programming-best-books/

#python #pythonprogramming #python #programming #coder #blogger #technology #denizhalil #learner