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// SEC_SYS_ACTIVE

Nexa, o seu centro
desempenho em cybersecurity

Resolva desafios CTF, melhore suas skills, suba no ranking e converta pontos em dinheiro real. Desafios à altura para quem leva cybersec a sério.

Visitar a comunidadeCapture the flags
120+Jogadores registados
200+Desafios activos
12Eventos realizados
40k+Flags capturadas
Sobre o Nexa

A plataforma que está a redefinir o treino em Cybersegurança.

Criado para elevar o nível técnico da comunidade, o Nexa combina desafios práticos, ambiente seguro e progressão clara — tudo num só ecossistema feito para quem leva segurança ofensiva a sério.

01

O que é o Nexa

Uma plataforma de CTF criada para elevar a formação em cybersecurity.

02

Pensado para evolução real

Desafios práticos, progressão clara e feedback imediato a cada etapa.

03

Criado por Angola

O primeiro ecossistema nacional para treinar e competir em cybersecurity.

04

Para aprendizes e profissionais

Do estudante ao ethical hacker sénior, todos evoluem no seu próprio ritmo.

Categorias de desafios

Diferentes áreas, diferentes formas de pensar. Exposição completa ao ecossistema de segurança ofensiva.

Web

Injeção, auth, lógica de negócio.

Reverse

Desmonta binários e entende o fluxo.

Pwn

Exploração de memória, buffer overflow.

Crypto

Criptografia, encoding, assinatura.

Forensics

Logs, imagens, memória, rede.

Network

Pacotes, protocolos, roteamento.

Ranking & gamificação

Mais do que resolver desafios: tu constróis reputação. Ranking semanal, badges e histórico público dão contexto ao teu nível.

Leaderboard semanalao vivo
#1

0xNova

Crypt0 Lord

9,820 pts
#2

rootwave

Web Slayer

9,140 pts
#3

ang0x

Forensics Hunter

8,810 pts

Os 3 melhores da nossa plataforma até agora.

Começa a capturar flags. Estamos a construir a próxima geração de hackers em Angola.

Junta-te ao Nexa, escolhe o primeiro desafio e vê até onde a tua curiosidade consegue ir.

Criar conta gratuitaEntrar na conta

O que dizem sobre o Nexa

Feedback de quem já usa a plataforma.

Aprendi mais atacando e defendendo desafios no Nexa em um mês do que em dois anos apenas a ler teoria.

— Mário, estudante de Engenharia Informática

É a primeira plataforma de CTF que realmente leva Angola a sério como comunidade de segurança.

— Cláudia, analista de segurança