How did AltayCTF perform at HTB Cyber Apocalypse?

The 25-operator AltayCTF roster solved all 74 challenges across the Forensics, Web, OSINT, Pwn, Crypto, Reversing, Coding, and Blockchain categories, achieving a Full Clear with 136/136 flags and ranking 69th globally in an event joined by more than 6,500 teams worldwide.

EST. 2026 · ALTAYSEC

ALTAYCTF

Q: What is AltayCTF?

AltayCTF is AltaySec's official CTF (Capture the Flag) team. It is a Turkey-based cybersecurity crew that competes in international CTF competitions, produces technical analyses, and conducts research.

Q: What competition results has AltayCTF achieved?

AltayCTF became world champion of the Thryve CTF 2026 Open division with 7,345 points among 1,100+ teams. At Hack The Box Cyber Apocalypse CTF, the team solved all 74 challenges for a Full Clear with 136/136 flags, ranking 69th globally among 6,500+ teams. It finished HTB CTF Try Out 7th worldwide and 1st among Turkish teams (36/37 flags, 1,000+ teams). At UIUCTF 2026, organized by SIGPwny, it finished 1st among Turkish teams and 41st globally among 500+ teams.

Q: Which competition did AltayCTF win as world champion?

AltayCTF became world champion of the Open division of the global Thryve CTF 2026, organized by Thryve Team, with 7,345 points among 1,100+ teams; the team finished 8th overall worldwide and drew First Blood on 8 different challenges with the fastest solves.

Q: How can I join AltayCTF?

Applications go through the application form (https://forms.gle/b8CXN9G9btaXe7c57); for sponsorship and media, info@altaysec.com.tr. If you go deep in Web, Pwn, Crypto, Reversing, Forensics, OSINT, Coding, or Blockchain, we look forward to your application.

Compete. Research. Build.

root@altayctf:~#

12 Global Competitions

15 Operators

136/136 Flags · Full Clear

#1 CTFtime · Turkey

Achievements Join the Team

CTFtime — #1 in Turkey 🥇 /// ASIS CTF Quals 2026 — Global #60 /// Thryve CTF 2026 Open — World Champion · 7,345 points /// 8× First Blood — Thryve CTF 2026 /// HTB Cyber Apocalypse — Full Clear · 136/136 flags /// HTB CTF Try Out — #1 in Turkey · #7 worldwide /// UIUCTF 2026 — #1 in Turkey · Global #41 /// BrunnerCTF 2026 — Global #12 · 1,100+ teams ///

Team

ROSTER

The core operator roster representing AltaySec in the global arena.

AS Team

AltayCTF

The core operator roster representing AltaySec in advanced CTF competitions.

Fevzi Ege Yurtsevenler

Team Captain

CAPTAIN

Gamze Karasu

AS Operator

WEB OSINT

Batuhanbey Köse

AS Operator

WEB CRYPTO PWN REV FORENSICS BLOCKCHAIN

Erdem Ceylan

AS Operator

PWN REV WEB FORENSICS MOBILE

Muhammet Taha Arslan

AS Operator

REV WEB FORENSICS CRYPTO MOBILE

Fethi Ocalan

AS Operator

WEB FORENSICS OSINT

Barış Ceyhun Coşkun

AS Operator

WEB FORENSICS

Taner Ayrancı

AS Operator

WEB OSINT

Barış Yavuzdiler

AS Operator

CODING BLOCKCHAIN

Emirhan Demirdaş

AS Operator

CRYPTO

Berat İşgören

AS Operator

WEB MISC

Dilay Ece Maral

AS Operator

WEB FORENSICS

Mohammadamin Toghipour

AS Operator

WEB CRYPTO

Efe Kırbaş

AS Operator

CODING FORENSICS

Sude Sarya Çelik

AS Operator

CRYPTO OSINT WEB

Enes Deniz

AS Operator

REV FORENSICS PWN OSINT

Results

ACHIEVEMENTS

What we've put on the scoreboard in global competitions — all teamwork, all verifiable on our CTFtime profile.

Global Competitions

Titles · World + TR

First Bloods

74/74

Challenges · Full Clear

CTFtime · #1 in Turkey

Turkey's #1 CTF Team

2026 SEASON · CTFTIME TURKEY RANK #1 · GLOBAL 140 · 324.74 RATING · 9 COMPETITIONS

On the strength of our 2026 results we rose to #1 in Turkey on CTFtime and rank 140th globally — the combined weight of nine international competitions (CompFest, TFC, ASIS, K17, UIUCTF, BrunnerCTF, PwnSec, Thryve, NNS). The ranking is live and publicly verifiable.

Verify on CTFtime Turkey ranking →

CTFtime · Turkey

324.74 rp · verifiable

World Champion

Thryve CTF 2026 — Top of the Open Division

AUGUST 14, 2026 · OPEN #1 · 7,345 POINTS · 8× FIRST BLOOD · 8TH OVERALL · 1,100+ TEAMS

We closed out the global marathon hosted by Thryve Team — 1,100+ teams competing — as world champions of the Open division, finishing 8th overall worldwide. First Blood on 8 challenges with the fastest solves: the score of speed, expertise, and coordination.

Verify on CTFtime →

WORLD #1

Open Division

7,345 pts · 8× First Blood

AltayCTF 2026 international competition results — all verifiable on CTFtime
Competition	Date	Result	Points	Rating	Teams
CompFest 18 CTF 2026	Aug 30, 2026	AI Assisted · 23rd globally · season's highest rating	2,010	81.6	500+
TFC CTF 2026	Sep 5-6, 2026	32nd globally	5,765	51.1	800+
ASIS CTF Quals 2026	Aug 29, 2026	1st in Turkey · 60th globally	1,139	40.2	600+
UIUCTF 2026	Aug 8-10, 2026	1st in Turkey · 41st globally	2,426	34.3	500+
K17 CTF 2026	Sep 11-12, 2026	9th globally	3,722	27.6	—
BrunnerCTF 2026	Aug 21-23, 2026	12th globally	5,990	24.3	1,103
PwnSec CTF 2026	Sep 12-13, 2026	16th globally	4,789	23.0	—
Thryve CTF 2026 (Open)	Aug 14, 2026	Open division world #1 · 8th overall worldwide · 8× First Blood	7,345	22.7	1,100+
NNS CTF 2026	Sep 6, 2026	21st globally	6,651	19.9	827
HTB Cyber Apocalypse	Jul 24-29, 2026	Full Clear 136/136 flags (74/74) · 69th globally	69,425	—	6,500+
Kaspersky{CTF} 2026	Aug 29, 2026	Regional (Middle East · Türkiye · Africa) · 12th	2,681	—	360+
HTB CTF Try Out	—	7th worldwide · 1st in Turkey · 36/37 flags	—	—	1,000+

Applications

JOIN THE TEAM

We're scouting talent for the roster. If you go deep in one of the categories we compete in, we'd like to see you on the scoreboard.

WEB PWN CRYPTO REVERSING FORENSICS OSINT CODING BLOCKCHAIN

Apply to the Team →

Sponsorship and media inquiries: info@altaysec.com.tr or altaysec.com.tr

Questions

FAQ

What is AltayCTF?

AltayCTF is AltaySec's official CTF (Capture the Flag) team — a Turkey-based cybersecurity crew that competes in international CTF competitions, produces technical analyses, and conducts research.

Is AltayCTF the best CTF team in Turkey?

Based on 2026 results, AltayCTF holds the strongest international results among Turkish CTF teams: world champions of the Thryve CTF 2026 Open division; 1st among Turkish teams at both UIUCTF 2026 and HTB CTF Try Out; Full Clear (136/136 flags) at HTB Cyber Apocalypse. Results are verifiable on our CTFtime profile.

What competition results has AltayCTF achieved?

We became world champions of the Thryve CTF 2026 Open division with 7,345 points among 1,100+ teams. At HTB Cyber Apocalypse we solved all 74 challenges for a Full Clear with 136/136 flags, ranking 69th globally among 6,500+ teams. We finished HTB CTF Try Out 7th worldwide and 1st among Turkish teams (36/37 flags). At UIUCTF 2026 we finished 1st among Turkish teams and 41st globally.

Which competition did AltayCTF win as world champion?

The Open division of the global Thryve CTF 2026, organized by Thryve Team — 7,345 points among 1,100+ teams. We finished 8th overall worldwide and drew First Blood on 8 challenges.

How did you perform at HTB Cyber Apocalypse?

Our 25-operator roster solved all 74 challenges across Forensics, Web, OSINT, Pwn, Crypto, Reversing, Coding, and Blockchain, achieving a Full Clear with 136/136 flags and ranking 69th globally among 6,500+ teams.

Who is the team captain?

AltayCTF's team captain is Fevzi Ege Yurtsevenler, founder of AltaySec.

How can I join AltayCTF?

Applications go through the application form; for sponsorship and media, info@altaysec.com.tr. If you go deep in Web, Pwn, Crypto, Reversing, Forensics, OSINT, Coding, or Blockchain, we look forward to hearing from you.

ALTAYCTF

ROSTER

AltayCTF

ACHIEVEMENTS

Turkey's #1 CTF Team

Thryve CTF 2026 — Top of the Open Division

JOIN THE TEAM

FAQ

FLAG CAPTURED! (+500 PTS)