perfect blue @pb_ctf Twitter profile

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perfect blue

2 years

2021 was a yet another great year for perfect blue! 🎉 We placed 1st place in globally for the 2nd year in a row!🏆 🥇1st place at 8 CTFs 🥈2nd place at 3 CTFs 🥉3rd place at 2 CTFs 💻And also organized a well received pbctf 2021!

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perfect blue

@pb_ctf

4 years

Unintended solution for DragonCTF "Home Office 2" :-)

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perfect blue

@pb_ctf

3 years

2020 was a great year for perfect blue! 🎉 We placed 1st place in globally! 🏆 Here’s an exclusive rewind ⏪ for this season from our perspective, the story behind our team and how we accomplished our goal.

perfect blue finishes #1 on CTFtime 2020

A 2020 CTF season retrospective

blog.perfect.blue

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perfect blue

@pb_ctf

3 years

perfect blue finishes 1st in GoogleCTF! Congratulations to all the other teams and the @GoogleVRP for the awesome CTF. See you at finals! 🙂

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perfect blue

@pb_ctf

2 years

Victory! perfect r✪✪✪t wins first place🥇in Google CTF 2022 for the second year in a row📅. Many thanks to the organizers (especially @gynvael and @ZetaTwo !) for their hard work to put together an amazing CTF. Looking forward to finals!

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perfect blue

@pb_ctf

3 years

perfect blue finishes 4th at HITB Pro CTF. We had a wonderful time in Dubai and Abu Dhabi! Thank you @HITBSecConf for organizing this awesome CTF and great job to all of our competitors!

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perfect blue

@pb_ctf

3 years

Had a blast at DEF CON 29 CTF meeting all the old and new friends. Shout-out to @oooverflow for organizing and @0rganizers for hosting the after-party! Thanks to @Hacker0x01 for sponsoring us. See you all next year? :)

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perfect blue

@pb_ctf

1 year

Blue Water finishes #1 in DEF CON CTF Qualifiers! 🏆 Looking forward to the finals. Congrats to all the other teams who played, and shoutout to @Nautilus_CTF for the great challenges. See you in Las Vegas!

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perfect blue

@pb_ctf

4 years

We are proud to announce our first CTF, pbctf! Everyone is welcome to participate. We have a lineup of challenges ready for you, ranging from easy to punishingly difficult. Date: 5 Dec. 2020 00:00 UTC - 6 Dec. 2020 23:59 UTC Reg will open soon at #pbctf

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perfect blue

@pb_ctf

1 year

A great start to 2023: perfect blue + Water Paddler won 2nd place in Real World CTF 2023 as our new collab, Blue Water!🏆💸 Thanks to the organizers for their hard work, and congratulations to all other teams for their outstanding performance!

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perfect blue

@pb_ctf

3 years

First place in @PlaidCTF , Our best two times qualifying to DEFCON Finals! 🥳🅿️🅱️ @oooverflow You already know what happens next? 👀

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perfect blue

@pb_ctf

4 years

When there's a client-side web challenge

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perfect blue

@pb_ctf

3 years

We are proud to announce our second annual CTF, pbctf with a total prize pool of 7,000 USD! We have a lineup of challenges ready for you, ranging from easy to punishingly difficult. Date: 9 Oct. 2021 00:00 UTC - 11 Oct. 2021 00:00 UTC Register at

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perfect blue

@pb_ctf

3 years

Finished 1st in HITCON 2021 again this year. We had an amazing time playing with @setuid0x0_ , @jinmo123 and @yechan_bae . Thanks to @HacksInTaiwan for such a great CTF, we are looking forward to next year.

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perfect blue

@pb_ctf

6 months

2023 was another great year for the team! 🎉 Blue Water, a collab between perfect blue and @Water_Paddler , placed 1st in CTFtime globally!🏆 🥇1st place in 6 CTFs 💻Hosted a successful pbctf 2023 In the past, we also placed first in 2020 and 2021.✌ Looking forward to 2024!🎆

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perfect blue

@pb_ctf

4 years

Perfect ⚔️ Guesser finishes #1 in HITCON CTF 2020! Thanks to @HacksInTaiwan for this great competition and congrats to all other competitors. We look forward to playing DEF CON 29 CTF Finals alongside with @GuesserSuper

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perfect blue

@pb_ctf

4 years

Perfect ⚔️ Guesser finishes #1 in DragonCTF 2020! Thanks to @DragonSectorCTF for the amazing challenges and congratulations to all the other competitors.

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perfect blue

@pb_ctf

4 years

perfect blue finishes #7 in GoogleCTF! Congratulations to all the other teams and the organizers for the awesome CTF. See you at finals! :D

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perfect blue

@pb_ctf

10 months

Blue Water places 2nd place in DEF CON CTF Finals! Blue Water is a merger of @pb_ctf + @Water_Paddler + Samsung Research + Tea Deliverers. Thank you to @Nautilus_CTF for the great CTF, and shoutout to all the other finalists! See you next year? 😉

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perfect blue

@pb_ctf

2 years

Three heads is better than one! In a 3-way collab, perfect blue, r00timentary, and Samsung Research triumphed to secure first place🥇in DEF CON CTF Qualifiers! Congratulations to @Nautilus_CTF for a wonderful inaugural CTF, and see everyone at finals!

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perfect blue

@pb_ctf

4 years

After 48 grueling hours of CTF, perfect blue finishes #2 in @TokyoWesterns CTF 2020! Thank you for the great competition!

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perfect blue

@pb_ctf

3 years

pbctf 2021 has concluded! Congratulations to our winners @dicegangctf , @GuesserSuper , and @0rganizers ! 🏆 Thanks to everyone who participated in #pbctf and taking their precious time to solve our challenges. See you next year!

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perfect blue

@pb_ctf

1 year

It's finally happening! pbctf 2023 is here 🗓️ Feb 18th, 14:00 UTC to Feb 20th 02:00 UTC (36 hours) 🎁 A $10,000 prize pool Proudly sponsored by @Zellic_io

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perfect blue

@pb_ctf

4 years

pbctf 2020 has concluded! Congratulations to our winners, zer0pts, @GuesserSuper , and Organizers! 🏆 Thanks to everyone who participated in #pbctf and taking their precious time to solve our challenges. See you next year!

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perfect blue

@pb_ctf

2 years

We collaborated with r00timentary ( @SSLab_Gatech ) as “perfect r00t” and emerged victorious at Real World CTF 2022! Thanks to @RealWorldCTF for the amazing challenges and congratulations to all the other competitors #HackTheReal

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perfect blue

@pb_ctf

2 years

Third edition of pbctf is here! 🗓️ Dec 3rd 14:00 UTC to Dec 5th 02:00 UTC (36 hours) 🎁 Sponsored by @Zellic_io #pbctf #pbctf2022

pbctf 2023

ctftime.org

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perfect blue

@pb_ctf

4 years

perfect blue finishes #1 in @asisctf ! Congratulations to the other competitors, MSLC, and TFNS.

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perfect blue

@pb_ctf

4 years

Trailer for pbctf 2020. Register now at

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perfect blue

@pb_ctf

4 years

Hey uhh this is just a joke 😛

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perfect blue

@pb_ctf

1 year

pbctf 2023 has concluded! Congratulations to our winners: 🥇More Smoked Leet chicken ( @leetmore ) 🥈 about:blankets 🥉 Water Paddler ( @Water_Paddler ) Thanks to everyone who participated in #pbctf . See you next year!

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perfect blue

@pb_ctf

4 years

perfect blue finishes #1 in @hack_lu CTF! Thanks to @fluxfingers for organizing the CTF and all the competitors. See you next year!

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perfect blue

@pb_ctf

3 years

Congratulations to @allesctf for taking the first blood 🩸 on Serenity Broowser challenge. Also, special shout out to @zer0pts who solved it 10 minutes later after ALLES! #pbctf

perfect blue

@pb_ctf

3 years

There are 0 solves on Serenity Broowser so far. Want to get first blood ? 🩸 Go to and try it out. You still have 31 hours to go!

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perfect blue

@pb_ctf

4 years

Clean Victory at #BSIDESSF 2020 CTF. Thanks to @BsidesSFCTF team for a great event. Congrats to @FlatNetworkOrg and @OpenToAllCTF for taking 2nd and 3rd places respectively.

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perfect blue

@pb_ctf

4 years

Trailer 2 for pbctf 2020. Register now at

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perfect blue

@pb_ctf

3 years

There are 0 solves on Serenity Broowser so far. Want to get first blood ? 🩸 Go to and try it out. You still have 31 hours to go!

pbctf

pbctf is perfect blue's third annual capture the flag event

ctf.perfect.blue

Andreas Kling

@awesomekling

3 years

There's a SerenityOS Browser pwn challenge in the just-started @pb_ctf ! Good luck to everyone doing it! 🤓🐞

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perfect blue

@pb_ctf

4 years

First CTF of the decade @WhiteHatvn

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perfect blue

@pb_ctf

5 years

Perfect Blue won first place in @asisctf this weekend! Now time to enjoy the delicious CTFTime points! :^)

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perfect blue

@pb_ctf

4 years

We are currently searching for any sponsorships for our CTF in three weeks, if interested dm this account or email us at team @perfect .blue, thank you!

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perfect blue

@pb_ctf

3 years

pbctf 2021 has started. Good luck, Have fun and Hack all the things! #pbctf

pbctf

pbctf is perfect blue's third annual capture the flag event

ctf.perfect.blue

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perfect blue

@pb_ctf

4 years

Hello everyone! Registration is finally up at . Join us for a weekend of fun :-) Date: 5 Dec. 2020 00:00 UTC - 6 Dec. 2020 23:59 UTC d You can also find us on discord:

Discord - Group Chat That’s All Fun & Games

Discord is great for playing games and chilling with friends, or even building a worldwide community. Customize your own space to talk, play, and hang out.

discord.com

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perfect blue

@pb_ctf

4 years

Perfect Blue finishes #10 in @PlaidCTF 2020!! Good job to all organizers for the great challenges and competitors for their amazing work. See you next year!

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perfect blue

@pb_ctf

4 years

After 48 hours of non-stop heap massaging, We finished 3rd in 0CTF 2020 organized by @0opscn . Congrats to koreanbadass and MSLC for securing 1st and 2nd place respectively. Shout-out to the organizers for the great challenges. We look forward to the finals! #0ctf2020

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perfect blue

@pb_ctf

3 years

Other teams have finally started adopting the new age of CTF tactics ;)

Harrison Green

@hgarrereyn

3 years

Placed 1st at @Pwn2Win this weekend with @dicegangctf and qualified for DEFCON CTF! We were the only team to solve the JIT VM reversing problem Highest Power. It was a group effort taking over 20 hours, here's my writeup:

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perfect blue

@pb_ctf

3 years

We are currently open and searching for any sponsorships for our annual jeopardy CTF event “pbctf” in 4 weeks. If you are interested, Let’s connect via DM or email us at team @perfect .blue to chat further. Thank You!

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perfect blue

@pb_ctf

4 years

Welcome @RBTree_ to perfect blue! Looking forward to playing the upcoming CTFs this year together :D

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perfect blue

@pb_ctf

3 years

Do you like LOTR, and hacking both? We have a good news. Gear up for “The Lord of the Flag” challenge during pbctf on October 9th. Register on to get your exclusive access and make sure to bring your own 🍿and 🍺. #LoTF #pbctf

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perfect blue

@pb_ctf

4 years

When your meme goes viral

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perfect blue

@pb_ctf

5 years

It's that time of year again! ...which means everyone is running CTFs. 3 more under the belt: JustCTF, watevrCTF, and wtftime CTF. Happy holidays!

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perfect blue

@pb_ctf

5 years

perfect blue is starting the decade with four new members: @0x464c457f , @owodelta , @aaditya_purani , @kidOfArcrania . Looking forward to playing with them.

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perfect blue

@pb_ctf

4 years

pbctf 2020 has started. Good luck, Have fun and Hack all the things! #pbctf

pbctf

pbctf is perfect blue's third annual capture the flag event

ctf.perfect.blue

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perfect blue

@pb_ctf

2 years

Please join us to congratulate @dicegangctf for their hard earned milestone of achieving 5th rank 👏

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perfect blue

@pb_ctf

2 years

@0rganizers 😉 On a serious note - Congrats and Good Luck for 2022! We enjoyed the healthy competition and the camaraderie between us this year. 🍻

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perfect blue

@pb_ctf

4 years

@DragonSectorCTF ?

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perfect blue

@pb_ctf

4 years

@LiveOverflow ⓘ 𝗢𝗳𝗳𝗶𝗰𝗶𝗮𝗹 𝘀𝗼𝘂𝗿𝗰𝗲𝘀 𝗵𝗮𝘃𝗲 𝗰𝗮𝗹𝗹𝗲𝗱 𝘁𝗵𝗶𝘀 𝗖𝗧𝗙 𝗱𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝘁𝗹𝘆

Dragon Sector

@DragonSectorCTF

4 years

The Dragon CTF 2020 is now over! Congratulations to the winners: 🥇Perfect ⚔️ Guesser ( @pb_ctf + @GuesserSuper ) 🥈ALLES! ( @allesctf ) 🥉hxp ( @hxpctf ) Thanks to all participating teams, and to our prize sponsor, @SumoLogic ! Full scoreboard:

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perfect blue

@pb_ctf

4 years

@LiveOverflow ⓘ 𝗧𝗵𝗶𝘀 𝗰𝗹𝗮𝗶𝗺 𝗮𝗯𝗼𝘂𝘁 𝗖𝗧𝗙 𝗳𝗿𝗮𝘂𝗱 𝗵𝗮𝘀 𝗯𝗲𝗲𝗻 𝗱𝗶𝘀𝗽𝘂𝘁𝗲𝗱

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perfect blue

@pb_ctf

3 years

Do you always wanted to hack Real World challenges? Look no further, Register at and check out the challenges marked as “pb2own”. In addition, We also have challenges with novel techniques in multiple categories. Less than 24 hours to go. #pbctf

pbctf

pbctf is perfect blue's third annual capture the flag event

ctf.perfect.blue

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perfect blue

@pb_ctf

3 years

The prize for Lord of The Flag: The Unfinished Chat challenge has been claimed by @S1r1u5_ and @PewGrand who managed to get first blood 🩸 ~ 36 hours after the end of CTF. No more submissions will be accepted for that anymore.

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perfect blue

@pb_ctf

4 years

@tsgctf The hero returns! 😂

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perfect blue

@pb_ctf

3 years

We would like to extend our thanks and shoutout to our sponsors for contributing to the prize pool. Premier Sponsor: @dfsec_it Major Sponsor: @Cellebrite Official Partners: @vector35 We recommend that you check out the awesome work they are doing

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perfect blue

@pb_ctf

4 years

New challenges release notification 📢 - Not-Stego (Misc) - crypto🔨 (Crypto) - Hacker’s Maze (Misc) - Amazing ROP (Pwn) Join the CTF at: to solve them #pbctf

pbctf

pbctf is perfect blue's third annual capture the flag event

ctf.perfect.blue

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perfect blue

@pb_ctf

3 years

We have marked few unsolved challenges are 🔥 which means you stand a chance to win $100 if you first blood 🩸 + do a public writeup for them in next 5 days! 1.) Lord of the Flag (Web) - ElectronJS 2.) LLLattice (Rev) - Hardware Chals can be found at

pbctf

pbctf is perfect blue's third annual capture the flag event

ctf.perfect.blue

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perfect blue

@pb_ctf

4 years

@BSidesSFCTF @FlatNetworkOrg @OpenToAllCTF We extend our thanks to @st98_ and @kaanezder for their effort alongside with our team for this CTF

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perfect blue

@pb_ctf

4 years

📢 All challenges have been released. Good luck for the last 23 and half hours of #pbctf . As things stand after 24 hours, we have Super Guesser leading the fray with 3390 points, closely followed by PPP and zer0pts.

pbctf

pbctf is perfect blue's third annual capture the flag event

ctf.perfect.blue

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perfect blue

@pb_ctf

3 years

The prize for LLLattice challenge has been claimed by Wiresboy from @dicegangctf who managed to get first blood 🩸 2 minutes after the end of CTF. No more submissions will be accepted for that anymore.

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perfect blue

@pb_ctf

10 months

@Water_Paddler @Nautilus_CTF + Kevin Stevens from SSLab ^^

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perfect blue

@pb_ctf

3 years

All challenges are released. For following notifications about the CTF. Join our discord or check out

pbctf

pbctf is perfect blue's third annual capture the flag event

ctf.perfect.blue

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perfect blue

@pb_ctf

3 years

Make sure to join our pbctf discord server to follow the latest and greatest update for the CTF (before, during and after the event):

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perfect blue

@pb_ctf

4 years

@GuesserSuper Please fill out the survey so we can improve pbctf in the future! :-)

pbctf 2020 survey

Let us know about your thoughts on the CTF! All questions are optional.

docs.google.com

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perfect blue

@pb_ctf

3 years

Please provide us feedback at :

pbctf 2021 survey

Let us know about your thoughts on the CTF! All questions are optional.

docs.google.com

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perfect blue

@pb_ctf

3 years

If you have participated in pbctf 2021. You stand a chance to $100 as writeup prize or $500 as the best writeup prize. Use the following link to submit your writeup to enroll in this writeup contest. We only accept submissions until 25 Oct 00:00 UTC

pbctf 2021 writeup submissions

docs.google.com

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