Freemen OS

I build open-source cybersecurity tools
IoT & Embedded Security
🏆 1st Place — Kaizen Innovation Challenge 2026
🔗 → Freemen OS

[Freemen OS @theFreemenOS]

DNS is the most dangerous protocol on your network and most firewalls don't even inspect it.
Cache Poisoning. Tunneling. Hijacking. NXDOMAIN floods. Phantom domains.All through port 53. All invisible if you're not monitoring.
#CyberSecurity #DNS #NetworkSecurity #InfoSec

[Freemen OS @theFreemenOS]

@cyber_razz B

[Freemen OS @theFreemenOS]

5/
Three different targets. One pattern: attackers aren't breaking doors anymore — they're proving the doors were never locked.
If your security depends on authentication alone, this was your wake-up call.
#CyberSecurity #ZeroDay #InfoSec #ThreatIntel

[Freemen OS @theFreemenOS]

1/
3 critical flaws actively exploited this week.
Same pattern every time: bypass authentication.
Here's what happened. 🧵

[Freemen OS @theFreemenOS]

4/
Windows Defender — RoguePlanet 0-day
Race condition granting SYSTEM access. Dropped on Patch Tuesday with zero coordinated disclosure. Your last line of defense, blinded.

[Freemen OS @theFreemenOS]

@TheHackersNews An auth bypass on a VPN gateway is as bad as it gets. This isn't just access to the network it's trusted access. Most orgs whitelist VPN traffic internally. Once you're in through GlobalProtect, you look like a legitimate employee. No alerts. Patch now, rotate creds.

[The Hacker News @TheHackersNews]

🚨 Hackers found a way into Palo Alto’s GlobalProtect VPN without a password.

The flaw, tracked as CVE-2026-0257, lets attackers bypass PAN-OS authentication and establish unauthorized VPN sessions.

Palo Alto says it’s already being used in real attacks.

If you run GlobalProtect, check this now.

Details ➝ https://t.co/OSarZ4i9jF

[Freemen OS @theFreemenOS]

7/
Two lessons:
Network segmentation isn't optional , it's your first line of defense.
And the best alarm in the world is useless if no one's watching.
#CyberSecurity #Target #DataBreach #IoTSecurity #InfoSec

[Freemen OS @theFreemenOS]

1/
40 million credit cards stolen.
The entry point? An air conditioner.
Here's how Target got hacked in 2013. 🧵

[Freemen OS @theFreemenOS]

6/
The aftermath:
→ $162M in losses
→ CEO resigned
→ CISO replaced
All because an HVAC system had no business being on the same network as payment terminals.

[Freemen OS @theFreemenOS]

APT groups use it to hide C2 commands inside public social media images. The malware downloads the photo, extracts the instructions, executes.
No suspicious traffic. Nothing.
Tools: Steghide, OpenStego, zsteg, ExifTool, Stegsolve.
You'll never look at an image the same way.

[Freemen OS @theFreemenOS]

Malware hidden inside a landscape photo.
No suspicious file. No weird extension. Passes every antivirus.
That's steganography attackers modify the least significant bits of pixels to embed full payloads inside images.
#Steganography #CyberSecurity #Malware #ThreatIntel

[Freemen OS @theFreemenOS]

@CyberRacheal Great map this is exactly how you start thinking like a network engineer. What I'd add from a security perspective: each of these layers is also an attack surface. BGP at the bottom, DNS in the middle,TLS stripping up top. A compromise at the foundation propagates silently upward

[Freemen OS @theFreemenOS]

@AikidoSecurity 10 years in default config. That's not a bug, that's a trust failure.phpBB powered the underground ironic that the platform hackers used to share exploits was itself sitting on an unauthenticated account takeover the whole time. The real lesson: default configs are attack surface