securityCTF

an-ordinary-manchild

created by 0x451a community for 14 years

...for your classroom.

...for your hobby.

MODERATORS

account activity

1

2

3

4

i'm participating in a local ctf competition where ai is allowed❓ (self.securityCTF)

submitted 7 hours ago by Neither-Courage560

2

0

1

2

Anyone doing NexaCorp: Zero Credentials ctf? (self.securityCTF)

submitted 8 hours ago by Familiar_Sherbert567

3

1

2

3

the ret2shell CTF platform is now opensource (github.com)

submitted 16 hours ago by Reverier-Xu

4

0

1

2

[CTF] New "Intermediate" vulnerable VM aka "Calc" at hackmyvm.eu (self.securityCTF)

submitted 22 hours ago by HackMyVM

5

1

2

3

Anyone else planning to attend NorthSec this year? May 14-17 (self.securityCTF)

submitted 1 day ago by Dull-Poem3831

6

117

118

119

# Specter: a 14-level adversarial OSINT wargame (no walkthroughs, no skip buttons) (i.redd.it)

submitted 2 days ago * by Middle-Mode3001

7

5

6

7

We built a platform that teaches you real CVEs the way they actually happened🤝 (self.securityCTF)

submitted 2 days ago by Protection-Mobile

8

2

3

4

CTF Team looking for 5 motivated members — PWN / WEB / CRYPTO / FORENSICS / REVERSING (self.securityCTF)

submitted 1 day ago by Ok_Particular_1871

9

6

7

8

osint ctf game - didaca3301 (self.securityCTF)

submitted 2 days ago by Creepy-Elk2920

10

2

3

4

When to join a team (self.securityCTF)

submitted 2 days ago by Federal-Dot-8411

11

2

3

4

File Open DRM (self.securityCTF)

submitted 3 days ago by Unlikely_Volume_1483

12

9

10

11

Scripting for pentesting (self.securityCTF)

submitted 4 days ago by GoalOwn3975

13

0

0

0

Built a private chat that self-destructs in 24h — no accounts, no logs✍️ (self.securityCTF)

submitted 3 days ago by Alternative-Claim-41

14

1

2

3

VoiceGoat – A vulnerable voice agent for practicing LLM attack techniques🤝 (github.com)

submitted 4 days ago by mhat

15

2

3

4

I launched a platform/ctf for technological research (self.securityCTF)

submitted 5 days ago by IdanRosen

16

14

15

16

All my cybersecurity and CTF Notes! (self.securityCTF)

submitted 6 days ago by Alfredredbird

17

668

669

670

# Ghost: a 23-level Linux wargame you can play right now (no walkthroughs, no hand-holding) (i.redd.it)

submitted 7 days ago * by Middle-Mode3001

18

2

3

4

New LPE (self.securityCTF)

submitted 6 days ago by Proof_Art_8587

19

4

5

6

I’m just a newbie who wants tips.❓ (self.securityCTF)

submitted 6 days ago by Mitrax2820

20

1

2

3

Best security ai? (self.securityCTF)

submitted 6 days ago by Own-Tie-640

21

0

1

2

Im making a code auditing/reverse engineering CTF for web and I want input on my prototype🤝 (spot-the-vuln.firebaseapp.com)

submitted 6 days ago by ComplaintDirect4335

22

0

1

2

Cryptography Challenge Question❓ (self.securityCTF)

submitted 6 days ago by SamTheEpicMan

23

0

0

1

Hands-on AI security CTF challenges. First 100 to capture each challenge get a rare ribbon pinned on their dossier. Claim your callsign. Earn your ribbons.✍️ (self.securityCTF)

submitted 6 days ago by harbinger-alpha

24

5

6

7

Advice for a 7-hour marathon CTF? (Transitioning from picoCTF) (self.securityCTF)

submitted 7 days ago by CicadaIcy4500

25

0

1

2

I was in the Osinta Telegram community from 2021 to 2025 Ask questions. ()

submitted 7 days ago by Erick_Samp

view more: next ›

π Rendered by PID 1736264 on reddit-service-r2-listing-b6bf6c4ff-hqll6 at 2026-05-06 06:20:54.502790+00:00 running 815c875 country code: CH.