This week's challenge is dropping tonight at 6:00pm ET! 🔎 Name: Poisoned Fruit 🔒 Category: Cryptography ⭐ Points: 250 Good luck on getting first blood🩸

We’re excited to host the CyberBay Cup 2026 at the CyberBay Summit next week! This event features both Jeopardy-style and Attack/Defense style CTF challenges. Compete for a share of the $40,000 prize pool! Learn more about rules and eligibility at cyberbay.org/cyberbay-cup...

We may or may not have hidden something special in tomorrow’s Flash CTF 🤔 It's not too late to sign up at skbt.io/feb2026

July Flash CTF starts today at 5pm ET 🎉 Sign up now to get some free CTF practice in, and maybe even walk away with cash or training opportunities from our sponsors @antisyphontraining.bsky.social, @tcmsecurity.bsky.social , and @simplycyber.bsky.social 🔗Registration: mctf.io/jul2025

🚨FlashCTF today at 5pm ET! 🚨 Try your shot at 5 unique challenges for the chance to win a ticket to DEF CON 33 and over $500 in cash prizes and training opportunities. 🔗 Links for registration and our free practice environment are in the comments 👇

We’re turning up the heat this summer🔥 One lucky winner of our June Flash CTF will win a ticket to DEF CON, (Aug 7-10th in Las Vegas NV), valued at over $500 🎟️ This free event will take place on June 26th from 5-7pm EST 🔗 Register now metactf.com/join/jun2025

🎉 The May 2025 Flash CTF starts today at 5pm ET / 2pm PT! 🎟️ One lucky winner gets a ticket to RVAsec 2025 Conference 🎁 All participants get one month FREE access to our new self-serve training platform, OnDemand Labs! 🔗 Register now: mctf.io/may2025

🚨 FlashCTF today at 5pm ET! 🚨 Try your shot at 5 unique challenges, open to a wide range of skill levels! Registration Link: app.metactf.com/join/apr2025 #CapturetheFlag #CTF #Cybersecurity

Of the 1,100+ participants in our last Flash CTF, only 5 solved our challenge ‘Syscall Me Maybe’ Try it out for yourself in our practice environment or register now for our April Flash CTF next week on Thursday, April 24th! Links in comments 👇

There was fierce competition in our March Flash CTF 💪 🏀 Missed the buzzer? No sweat - Check out full challenge writeup and register for our April Flash CTF using the links in comments below👇

🚨March Flash CTF starts today at 5pm ET 🚨 There's still time to register using link in comments below 👇

Only 6 participants solved our challenge “Ashhay” from our most recent Flash CTF. Were you stumped? Check out the full challenge writeup and solution, now live on our blog! You can also try out previous challenges in our practice environment. Links are down below in comments 👇

Another successful Flash CTF in the books 🎉 Thanks to all who participated and to our awesome partners @antisyphontraining.bsky.social, #TCMSecurity, and #SimplyCyberAcademy. Full challenge writeup and solution on our blog - link in comments 👇