A weeb team with a CTF problem. The official Twitter account of the perfect blue CTF team. Ranked #1 2020, 2021, 2023 (as part of Blue Water)

๐Ÿ‡บ๐Ÿ‡ธ/๐Ÿ‡จ๐Ÿ‡ฆ/๐Ÿ‡ช๐Ÿ‡ช/๐Ÿ‡ฐ๐Ÿ‡ท/๐Ÿ‡ฆ๐Ÿ‡บ/๐Ÿ‡ณ๐Ÿ‡ด
2021 was a yet another great year for perfect blue! ๐ŸŽ‰ We placed 1st place in CTFTime.org globally for the 2nd year in a row!๐Ÿ† ๐Ÿฅ‡1st place at 8 CTFs ๐Ÿฅˆ2nd place at 3 CTFs ๐Ÿฅ‰3rd place at 2 CTFs ๐Ÿ’ปAnd also organized a well received pbctf 2021!
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Unintended solution for DragonCTF "Home Office 2" :-)
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2020 was a great year for perfect blue! ๐ŸŽ‰ We placed 1st place in CTFTime.org globally! ๐Ÿ† Hereโ€™s an exclusive rewind โช for this season from our perspective, the story behind our team and how we accomplished our goal. blog.perfect.blue/perfect-blโ€ฆ
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perfect blue finishes 1st in GoogleCTF! Congratulations to all the other teams and the @GoogleVRP for the awesome CTF. See you at finals! ๐Ÿ™‚
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Victory! perfect rโœชโœชโœชt wins first place๐Ÿฅ‡in Google CTF 2022 for the second year in a row๐Ÿ“…. 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 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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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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Blue Water finishes #1 in DEF CON CTF Qualifiers! ๐Ÿ† 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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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 ctf.perfect.blue #pbctf
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A great start to 2023: perfect blue + Water Paddler won 2nd place in Real World CTF 2023 as our new collab, Blue Water!๐Ÿ†๐Ÿ’ธ Thanks to the organizers for their hard work, and congratulations to all other teams for their outstanding performance!
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First place in @PlaidCTF, Our best two times qualifying to DEFCON Finals! ๐Ÿฅณ๐Ÿ…ฟ๏ธ๐Ÿ…ฑ๏ธ @oooverflow You already know what happens next? ๐Ÿ‘€
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When there's a client-side web challenge
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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 ctf.perfect.blue
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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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2023 was another great year for the team! ๐ŸŽ‰ Blue Water, a collab between perfect blue and @Water_Paddler, placed 1st in CTFtime globally!๐Ÿ† ๐Ÿฅ‡1st place in 6 CTFs ๐Ÿ’ปHosted a successful pbctf 2023 In the past, we also placed first in 2020 and 2021.โœŒ Looking forward to 2024!๐ŸŽ†
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Perfect โš”๏ธ 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 โš”๏ธ Guesser finishes #1 in DragonCTF 2020! Thanks to @DragonSectorCTF for the amazing challenges and congratulations to all the other competitors.
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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? ๐Ÿ˜‰
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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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After 48 grueling hours of CTF, perfect blue finishes #2 in @TokyoWesterns CTF 2020! Thank you for the great competition!
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Three heads is better than one! In a 3-way collab, perfect blue, r00timentary, and Samsung Research triumphed to secure first place๐Ÿฅ‡in DEF CON CTF Qualifiers! Congratulations to @Nautilus_CTF for a wonderful inaugural CTF, and see everyone at finals!
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pbctf 2021 has concluded! Congratulations to our winners @dicegangctf , @GuesserSuper, and @0rganizers ! ๐Ÿ† Thanks to everyone who participated in #pbctf and taking their precious time to solve our challenges. See you next year!
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It's finally happening! pbctf 2023 is here ๐Ÿ—“๏ธ Feb 18th, 14:00 UTC to Feb 20th 02:00 UTC (36 hours) ๐ŸŽ A $10,000 prize pool Proudly sponsored by @Zellic_io ctftime.org/event/1763
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pbctf 2020 has concluded! Congratulations to our winners, zer0pts, @GuesserSuper, and Organizers! ๐Ÿ† Thanks to everyone who participated in #pbctf and taking their precious time to solve our challenges. See you next year!
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We collaborated with r00timentary (@SSLab_Gatech) as โ€œperfect r00tโ€ 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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Third edition of pbctf is here! ๐Ÿ—“๏ธ Dec 3rd 14:00 UTC to Dec 5th 02:00 UTC (36 hours) ๐ŸŽ Sponsored by @Zellic_io ctftime.org/event/1763 #pbctf #pbctf2022
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perfect blue finishes #1 in @asisctf ! Congratulations to the other competitors, MSLC, and TFNS.
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Trailer for pbctf 2020. Register now at ctf.perfect.blue
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Hey uhh this is just a joke ๐Ÿ˜›
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Attention CTFers! Blue Water CTF is this weekend, hosted by perfect blue and Water Paddler. It will run for 36 hours, starting from 2:00 PM UTC on Saturday, October 12. We'll have plenty of challenges for pwn, web, reversing, and crypto! Registration: bw.ctf.ing
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pbctf 2023 has concluded! Congratulations to our winners: ๐Ÿฅ‡More Smoked Leet chicken (@leetmore) ๐Ÿฅˆ about:blankets ๐Ÿฅ‰ Water Paddler (@Water_Paddler) Thanks to everyone who participated in #pbctf. See you next year!
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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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Blue Water CTF has concluded, and congratulations to our winners! ๐Ÿ† 1st place: @0rganizers [$4000] ๐Ÿฅˆ 2nd place: @CyKorKU [$2000] ๐Ÿฅ‰ 3rd place: @SuperGuesser [$1000] We are also offering a $100 FIRST BLOOD PRIZE๐Ÿฉธfor the first solve of each of these unsolved challenges: ๐Ÿ‘‡
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Congratulations to @allesctf for taking the first blood ๐Ÿฉธ on Serenity Broowser challenge. Also, special shout out to @zer0pts who solved it 10 minutes later after ALLES! #pbctf
There are 0 solves on Serenity Broowser so far. Want to get first blood ? ๐Ÿฉธ Go to ctf.perfect.blue and try it out. You still have 31 hours to go!
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Trailer 2 for pbctf 2020. Register now at ctf.perfect.blue
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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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There are 0 solves on Serenity Broowser so far. Want to get first blood ? ๐Ÿฉธ Go to ctf.perfect.blue and try it out. You still have 31 hours to go!
There's a SerenityOS Browser pwn challenge in the just-started @pb_ctf! Good luck to everyone doing it! ๐Ÿค“๐Ÿž ctf.perfect.blue/
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Perfect Blue won first place in @asisctf this weekend! Now time to enjoy the delicious CTFTime points! :^)
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First CTF of the decade @WhiteHatvn
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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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pbctf 2021 has started. ctf.perfect.blue Good luck, Have fun and Hack all the things! #pbctf
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Hello everyone! Registration is finally up at ctf.perfect.blue. 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.gg/8BhEHts
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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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We are currently open and searching for any sponsorships for our annual jeopardy CTF event โ€œpbctfโ€ in 4 weeks. If you are interested, Letโ€™s connect via DM or email us at team@perfect.blue to chat further. Thank You!
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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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Other teams have finally started adopting the new age of CTF tactics ;)
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: ctf.harrisongreen.me/2021/pwโ€ฆ
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Welcome @RBTree_ to perfect blue! Looking forward to playing the upcoming CTFs this year together :D
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Do you like LOTR, and hacking both? We have a good news. Gear up for โ€œThe Lord of the Flagโ€ challenge during pbctf on October 9th. Register on ctf.perfect.blue to get your exclusive access and make sure to bring your own ๐Ÿฟand ๐Ÿบ. #LoTF #pbctf
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When your meme goes viral
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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 is starting the decade with four new members: @0x464c457f, @owodelta, @aaditya_purani, @kidOfArcrania. Looking forward to playing with them.
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pbctf 2020 has started. ctf.perfect.blue Good luck, Have fun and Hack all the things! #pbctf
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Please join us to congratulate @dicegangctf for their hard earned milestone of achieving 5th rank ๐Ÿ‘
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Replying to @0rganizers
๐Ÿ˜‰ On a serious note - Congrats and Good Luck for 2022! We enjoyed the healthy competition and the camaraderie between us this year. ๐Ÿป
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Replying to @LiveOverflow
โ“˜โ€‚๐—ข๐—ณ๐—ณ๐—ถ๐—ฐ๐—ถ๐—ฎ๐—น ๐˜€๐—ผ๐˜‚๐—ฟ๐—ฐ๐—ฒ๐˜€ ๐—ต๐—ฎ๐˜ƒ๐—ฒ ๐—ฐ๐—ฎ๐—น๐—น๐—ฒ๐—ฑ ๐˜๐—ต๐—ถ๐˜€ ๐—–๐—ง๐—™ ๐—ฑ๐—ถ๐—ณ๐—ณ๐—ฒ๐—ฟ๐—ฒ๐—ป๐˜๐—น๐˜†
The Dragon CTF 2020 is now over! Congratulations to the winners: ๐Ÿฅ‡Perfect โš”๏ธ Guesser (@pb_ctf + @GuesserSuper) ๐ŸฅˆALLES! (@allesctf) ๐Ÿฅ‰hxp (@hxpctf) Thanks to all participating teams, and to our prize sponsor, @SumoLogic! Full scoreboard: ctf.dragonsector.pl/?scoreboโ€ฆ
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Replying to @LiveOverflow
โ“˜โ€‚๐—ง๐—ต๐—ถ๐˜€ ๐—ฐ๐—น๐—ฎ๐—ถ๐—บ ๐—ฎ๐—ฏ๐—ผ๐˜‚๐˜ ๐—–๐—ง๐—™ ๐—ณ๐—ฟ๐—ฎ๐˜‚๐—ฑ ๐—ต๐—ฎ๐˜€ ๐—ฏ๐—ฒ๐—ฒ๐—ป ๐—ฑ๐—ถ๐˜€๐—ฝ๐˜‚๐˜๐—ฒ๐—ฑ
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The prize for Lord of The Flag: The Unfinished Chat challenge has been claimed by @S1r1u5_ and @PewGrand who managed to get first blood ๐Ÿฉธ ~ 36 hours after the end of CTF. No more submissions will be accepted for that anymore.
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Do you always wanted to hack Real World challenges? Look no further, Register at ctf.perfect.blue and check out the challenges marked as โ€œpb2ownโ€. In addition, We also have challenges with novel techniques in multiple categories. Less than 24 hours to go. #pbctf
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New challenges release notification ๐Ÿ“ข - Not-Stego (Misc) - crypto๐Ÿ”จ (Crypto) - Hackerโ€™s Maze (Misc) - Amazing ROP (Pwn) Join the CTF at: ctf.perfect.blue to solve them #pbctf
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Replying to @tsgctf
The hero returns! ๐Ÿ˜‚
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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 ctf.perfect.blue/sponsors/
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We have marked few unsolved challenges are ๐Ÿ”ฅ which means you stand a chance to win $100 if you first blood ๐Ÿฉธ + 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 ctf.perfect.blue
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We extend our thanks to @st98_ and @kaanezder for their effort alongside with our team for this CTF
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๐Ÿ“ข 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. ctf.perfect.blue
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+ Kevin Stevens from SSLab ^^
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The prize for LLLattice challenge has been claimed by Wiresboy from @dicegangctf who managed to get first blood ๐Ÿฉธ 2 minutes after the end of CTF. No more submissions will be accepted for that anymore.
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Unsolved challenges eligible for first blood prize: ๐Ÿ‘‰ Geo Weapon (By Pew) ๐Ÿ‘‰ MD5.1 (By rbtree) ๐Ÿ‘‰ Collider (By soon_haari) The first person who successfully verifies their solution for each challenge will receive a $100 award.
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All challenges are released. For following notifications about the CTF. Join our discord or check out ctf.perfect.blue/notificatioโ€ฆ
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Make sure to join our pbctf discord server to follow the latest and greatest update for the CTF (before, during and after the event): discord.gg/GXtshq7Qwe
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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 docs.google.com/forms/d/e/1Fโ€ฆ
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