Akash Kumar

Akash Kumar, founder of AceFortis. Penetration tester and cybersecurity trainer based in Milan, and cybersecurity instructor at DEMOS Fondazione ITS. Expertise: penetration testing, red teaming and Active Directory security. I offer security awareness training, phishing simulations and courses on NIS2, DORA and ISO 27001 for companies and institutions, in English and Italian. Certifications: CPENT, CRTA, eJPT, PT1.
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160 Articles

Impacket Tools Mastery: Essential CTF Weaponry

Impacket Tools Mastery: Essential CTF Weaponry Hey there! So you've encountered a…

Akash Kumar
4 Min Read

Reverse Shell Cheat Sheet: From Basic to Advanced Techniques

Reverse Shell Cheat Sheet: From Basic to Advanced Techniques Hey there! So…

Akash Kumar
4 Min Read

Active Directory Enumeration: Ultimate Guide for CTF Challenges

Active Directory Enumeration: Ultimate Guide for CTF Challenges Hey there! So you've…

Akash Kumar
4 Min Read

TONTOU: New CPU Attack Steals Passwords from Your Processor

How a tiny timing window in your CPU's security defenses is letting…

Akash Kumar
17 Min Read

LinPEAS Finds Nothing? Here’s How to Find Privilege Escalation Manually

When LinPEAS doesn't find privilege escalation, use these manual techniques: SUID binaries,…

Akash Kumar
10 Min Read

Impacket psexec.py Hangs? Here’s Why (And What to Use Instead)

Complete guide: Fix psexec.py hangs, access denied errors, and AV blocking. Alternative…

Akash Kumar
7 Min Read

Reverse Shell Dies Immediately? Here’s How to Fix It (Every Time)

Complete troubleshooting guide: Fix reverse shells that die immediately, timeout, or refuse…

Akash Kumar
7 Min Read

When Ports Go Dark: What the North Carolina Ports Cyberattack Reveals About Critical Infrastructure

When Ports Go Dark: What the North Carolina Ports Cyberattack Reveals About…

Akash Kumar
15 Min Read

How Hackers Walked Away with Levi’s Corporate Data

How Hackers Walked Away with Levi’s Corporate Data What a 170-Year-Old Denim…

Akash Kumar
18 Min Read

Is Penetration Testing Dead in 2026? The Truth About the “Commoditization” Fear

Is penetration testing dead in 2026? Grab your coffee and let's talk…

Akash Kumar
9 Min Read