teddy

aka TheSavageTeddy | 🚩Vice Captain - @EmuExploit 🇦🇺 CTF team | uni student | auditor & research @zellic_io | DEFCON 32 Finalist

[teddy @teddyctf]

glad to finally have this blog published!
check it out - should be an interesting read!

https://t.co/ojLjTSweRM

[Zellic @zellic_io]

We retrieved every contract on Ethereum.

Along the way, we found the exact date when 16,000 unique contracts were deployed (the most in one day), the EOA with the most deployed contracts (2.9M), and much more.

This is how we did it.🧵

(Spoiler: It’s 69,788,231 contracts!)

[teddy @teddyctf]

🥉Oceania 3rd in ICC 2026! 🔥
i enjoyed the no-AI for majority of competition rule, i think it’s been a longtime since i had fun playing ctf

thanks to organisers and challenge authors for a great event!!

gg
@TeamOceaniaICC

[〈seal〉 @sealldev]

GG for 3rd with @TeamOceaniaICC!

[HexF @HexF_me]

3rd place at the International Cybersecurity Challenge with @TeamOceaniaICC

[teddy @teddyctf]

c4 was what got me started in blockchain. sad to see go after all these years 🫡
thanks for all the opportunities and contributions to the web3 community

[Code4rena @code4rena]

After careful consideration, we’ve made the decision to wind down @code4rena. This community has meant a great deal to everyone who has been part of building it, and sharing this news is not easy.

[Emu Exploit @EmuExploit]

The first wave of EMUCON talks have been released, including our exciting keynote by @kylieengineer : Quietly World-Class: The Australian Offensive Security Ecosystem

There is still time left to submit your CFP, much more to follow!

https://t.co/LTorx8tJLX

[teddy @teddyctf]

gg! managed to win without AI

[InfoSect @infosectcbr]

Great CTF at CrikeyCon this weekend. Thanks for having us 🙏

[teddy @teddyctf]

@_mixy1 feels that way. haven’t had fun playing a ctf in a long time…

[cts🌸 @gf_256]

V12 is now live for open beta. It can:

- Find valuable bugs
- Generate working, runnable PoC
- Generate patch and test the PoC against it

In our testing during audits at Zellic, Zenith, and Code4rena we've been consistently impressed.

Best of all: it's free. (Don't abuse it!)

[teddy @teddyctf]

ICC Tokyo (Chiba) 2025 was amazing!
Great challenges and very well organised, thanks to everyone involved!!
#icctokyo2025

[teddy @teddyctf]

2023 - 3rd place 🥉
2024 - 2nd place 🥈
and finally, 2025 - 1st place 🥇!!
by a VERY small margin of just 50 points! (please consult the graph)

this is the closest amount ive ever experienced, and it was even more nerve wracking as the scoreboard was frozen for the last hour.

[Emu Exploit @EmuExploit]

The curse has been broken!
🏆We finally won BSides Canberra CTF 2025!🥇
Congratulations to our close competition @FrenchRoomba and SoberOstrich. Thanks to @BSidesCbr for the outstanding conference, and of course @sk8boardingdog 🛹🐶 for the amazing CTF this year.

[Emu Exploit @EmuExploit]

The curse has been broken!
🏆We finally won BSides Canberra CTF 2025!🥇
Congratulations to our close competition @FrenchRoomba and SoberOstrich. Thanks to @BSidesCbr for the outstanding conference, and of course @sk8boardingdog 🛹🐶 for the amazing CTF this year.

[skateboarding dog @sk8boardingdog]

Congratulations to the winners of @BSidesCbr 2025 CTF

🏆 PISSED EMU @EmuExploit

And an equally enormous congratulations to our runners up, by only a 50 point margin

🥈FrenchRoomba @FrenchRoomba

And to our third place team with some very impressive solves

🥉SoberOstrich

[teddy @teddyctf]

@DicksonWuML glad you find it interesting!
tracing all blocks took ~3 days.

we previously did include contract code here https://t.co/kmizYgnjyp but as of now i have no plans for the new dataset

[teddy @teddyctf]

glad to finally have this blog published!
check it out - should be an interesting read!

https://t.co/ojLjTSweRM

[Zellic @zellic_io]

We retrieved every contract on Ethereum.

Along the way, we found the exact date when 16,000 unique contracts were deployed (the most in one day), the EOA with the most deployed contracts (2.9M), and much more.

This is how we did it.🧵

(Spoiler: It’s 69,788,231 contracts!)

[teddy @teddyctf]

yay!

[Emu Exploit @EmuExploit]

we played K17 ctf this weekend and managed to grab 1st academic in australia! yay!

[teddy @teddyctf]

🩸i got the first blood prize for both Ethereum challenges in Sekai CTF 2025 this weekend!

check out my detailed writeups for both challenges:
https://t.co/l22IvPbEkG

thanks @ProjectSEKAIctf for organising!

[teddy @teddyctf]

finally got first place overall with @EmuExploit …

[DownUnderCTF @DownUnderCTF]

Our digital vines have delivered the news! The prize winners of DownUnderCTF6 have been crowned! 🏆🦜
From phishing traps to logic leaps, these cyber-explorers conquered the wild!

Swing over to the prize winner graphic to see who made it out of the jungle with the treasure!

[teddy @teddyctf]

yay!!
great challenges as always 🦍🦍🦍
thanks @DownUnderCTF :3

[Emu Exploit @EmuExploit]

Congrats to our Student team on another victory @DownUnderCTF 🥇

Thanks to the organisers for another amazing event! (+ kudos on the new platform 😎) Congratulations to all that competed! See you next year🎉

[teddy @teddyctf]

wrote blockchain writeup for codegate 2025:
https://t.co/5b35fl9p62

nice ctf and great meeting everyone!

[Emu Exploit @EmuExploit]

We had a great time at @CODEGATE_KR CTF finals this year as 🤬🇫🇷🛹🐻! Thanks to the organisers for the challenges, we had a great time.

Hope to see everyone next year 🇰🇷

[teddy @teddyctf]

@leoyanzon @zellic_io read the full blog for more details 🙂