Sign's on the door. Room's active. You have access you were never given, and so does he.

Probe a 1D perceptron over the network. Send it numbers and watch whether the neuron fires or not. Use those responses to figure out the decision boundary, then line up the last eight outputs to read the ASCII for p (01110000) and you'll earn the flag. Connect with netcat: $ nc aureolin-pixie.cylabacademy.net 50288 The input bounds are shown on connect to keep the search small. You cannot submit the same number back-to-back.

Files can always be changed in a secret way. Can you find the flag?

Can you find the flag in the file? This would be really tedious to look through manually, something tells me there is a better way. The flag is in this file.

I don't like scrolling down to read the code of my website, so I've squished it. As a bonus, my pages load faster! Browse here, and find the flag!

Decrypt this message. Message: message

Using netcat (nc) is going to be pretty important. Can you connect to fickle-tempest.picoctf.net at port 53218 to get the flag?

What does this bDNhcm5fdGgzX3IwcDM1 mean? I think it has something to do with bases.

Can you get the real meaning from this file. Download the file here.

Download this image and find the flag.