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RingZer0 Team Online CTF

RingZer0 Team's online CTF offers you tons of challenges designed to test and improve your hacking skills through hacking challenges. Register and get a flag for every challenge.



The RingZer0 Team Online CTF is now proudly hosted by NorthSec.

Chat / Questions / Help

You'll find all what you need in the Discord Server.

Join the Discord now!

Challenges

Currently more than 300 challenges are available over 15 categories. Have fun resolving them.

View challenges »

Register

Your first time here? First step register an account, that way you will be able to login and start solving challenges.

Register »


Want to become certified RCEH?

Super simple: get at least 70% of the total points (which is 1288 points at the moment). With this certification, you will be able to buy a RCEH token that will be available on the shop. The RingZer0 Certified Elite Hacker (RCEH) certification is a highly technical certification. Anyone holding the RCEH title is a highly skilled hacker.

Once you get your RCEH title you can proudly use the certified logo and show to the rest of the world that you successfully managed to solve several hacking challenges on the RingZer0 CTF.


Scoreboard - 52446 players

Position Username Points Gold Last Validation Special Mention
101
vcapra1
445 75 2020-08-11 15:00:27
102
SaxX
444 14 2016-02-25 12:01:04
103
MtucX
442 1 2019-03-27 14:51:50
104
xaav
436 55 2025-06-23 03:11:29
105
salt
435 250 2019-03-24 01:07:08
106
archervatan
433 0 2023-06-04 06:16:41
107
xyzzy5475
428 328 2019-09-13 13:54:40
108
CyberPi2
428 0 2024-04-17 13:49:44
109
govlog
427 1 2018-04-27 17:33:07
110
solarwind
425 0 2017-07-04 02:41:01
111
jablonskim
424 0 2025-07-31 11:45:54
112
Charo
422 0 2017-01-16 00:17:40
113
blablazej
421 0 2022-01-30 19:16:04
114
bipin
420 11 2024-11-23 08:08:33
115
flash2307
418 0 2025-07-24 19:43:47
116
abysee
418 0 2025-07-22 08:18:27
117
s7dn9y
417 0 2015-05-01 23:27:10
118
Radu
416 1 2021-08-17 02:38:30
119
mantz
415 2 2019-09-30 02:40:59
120
GinTora
412 1 2024-10-18 01:16:25
121
carapas
411 1 2017-11-04 14:38:12
122
love0day
408 0 2017-01-02 00:48:37
123
testing
407 0 2024-01-21 09:01:12
124
tunelko
407 0 2017-04-25 02:46:51
125
div
403 0 2022-02-03 16:24:39
126
mukkul007
401 0 2020-04-22 18:52:09
127
Polines
400 0 2025-07-02 12:50:44
128
twado
399 126 2025-05-25 22:23:24
129
Snider
398 5 2018-07-11 10:45:02
130
mikejam
397 0 2023-03-09 16:10:45
131
ramza500
391 19 2018-05-27 00:27:46
132
markmark
391 0 2018-04-23 20:31:44
133
capsl
389 0 2016-02-14 18:48:16
134
pylessard
388 15 2017-01-14 02:01:38
135
tanovich
388 1 2024-02-29 13:01:43
136
yayctf
388 0 2018-08-15 22:49:20
137
Decay
387 11 2024-01-15 06:11:13
138
kasia-tutej
384 10 2020-09-11 11:24:59
139
Poltekssn1
384 0 2025-07-02 11:15:27
140
falcon
384 0 2019-12-05 04:22:34
141
sambecks
383 22 2016-05-05 12:02:20
142
techr0n
381 13 2023-10-06 00:38:26
143
dank23
381 1 2023-08-16 02:01:35
144
noother
381 0 2024-12-28 10:06:14
145
Fox1337
380 6 2023-03-02 01:02:58
146
noble
379 0 2023-04-06 08:56:06
147
zerosum0x0
375 0 2020-02-05 20:05:26
148
Mister_Bert0ni
375 0 2017-06-24 15:54:59
149
jeromeS
374 0 2025-04-30 21:41:10
150
ekse
374 0 2022-04-27 18:52:43

Search by username


Latest challenges validations

Last validation Challenge User who solved it
2025-08-08 07:44:15 PHP Fairy Wafik0x
2025-08-08 06:23:43 Area 51 Aathif
2025-08-08 05:35:52 Bash Jail 2 hatem
2025-08-08 05:33:56 Bash Jail 1 hatem
2025-08-08 05:02:23 I made a dd of Agent Smith usb key hackerX
2025-08-08 04:59:59 I made a dd of Agent Smith usb key rahul-cyber
2025-08-08 04:14:46 Big Brother is watching hackerX
2025-08-08 03:41:46 Looking for password file hackerX
2025-08-08 02:52:42 A ghost sound hackerX
2025-08-08 02:41:34 Looking for password file bobby_smiles

The latest write-up with special mention


The latest challenges added



Charles F. Hamilton started RingZer0 website in 2014 by hosting everything in his own garage (Picture here). You can find the list of users that contributed over the years here.


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