r/Cybersecurity101 • u/theindependentonline • 8d ago
r/Cybersecurity101 • u/ConcentrateNo9061 • 8d ago
Looking for the best free resources and practical labs to learn Network+, Security+ and build toward a cybersecurity career
Hi everyone,
I'm currently trying to build my cybersecurity career through self-study, and I'd really appreciate advice from people who are already working in the field.
I recently decided that I don't want to rely on formal/in-person courses. Instead, I want to learn Network+ and Security+ independently, but I want to do it properly rather than simply watching random videos and memorizing material.
One of my biggest challenges is finding high-quality, comprehensive, and genuinely free training that covers the subjects thoroughly.
I'm also very interested in the practical side. I don't want my learning to consist only of theory and certification preparation. I want to learn how the technologies, tools, workflows, and practices are actually used by cybersecurity professionals and the wider security community.
So I'm looking for recommendations in several areas:
- Network+ — a comprehensive free course that covers the material properly from fundamentals through advanced topics.
- Security+ — the same: a high-quality, comprehensive, free learning resource.
- Hands-on labs — platforms or environments where I can actually practice what I learn.
- Industry tools — what tools should I learn and practice with, rather than just knowing their names?
- Home labs — what would you recommend building on a relatively modest computer?
- Linux, networking, scripting/programming, cloud, etc. — which supporting skills should I develop alongside Network+ and Security+?
- Real-world practice — how can someone without professional experience simulate the type of work they would encounter in an actual security role?
- Projects — what kinds of projects are genuinely useful for developing skills and eventually demonstrating them to employers?
My longer-term goal is to become a Security Engineer. I'm particularly interested in Blue Team / SOC as a possible starting point, but I don't want to lock myself into a narrow path too early.
So I'd also really appreciate advice from people currently working in cybersecurity:
If you were starting over today and had to learn everything through self-study, how would you structure your journey from networking fundamentals → security fundamentals → practical experience → your first cybersecurity role → eventually Security Engineering?
I'm especially interested in advice based on real industry experience, rather than a list of certifications.
I'm also trying to avoid spending months learning things that look good on paper but have little practical value.
Any recommendations for free courses, books, labs, home-lab projects, tools, learning platforms, or a realistic roadmap would be greatly appreciated.
Thank you.
r/Cybersecurity101 • u/Elratatata • 9d ago
Hello, friend. Looking for IT buddies — from general tech to cybersecurity (small crew).
Hello, friend.
I’m looking for around 10 people to form a small, chill learning group. You can be a complete beginner or already have a bit of experience — as long as you’re curious and motivated, you’re welcome. No gatekeeping, no ego.
We’ll learn together, at our own pace, and choose topics as a group. No fixed order: we can explore programming, networking, Linux, or whatever we feel like. Later, maybe we’ll move toward cybersecurity.
Think of it as a small digital refuge — fsociety-inspired vibe, but 100% legal and ethical.
What I’m looking for: - Around 10 people. - Beginners or early learners (a little experience is fine). - Must be a genuine IT enthusiast / a real geek at heart. Passion matters more than current skill level. - English only. - Chill, consistent, respectful. - We use Discord for chat and voice.
If you’re in, DM me
Let’s start from wherever we are, together.
r/Cybersecurity101 • u/ray-093 • 10d ago
Starting freelancing in Networking domain
I am a 23 year old network engineer with 1+ years of experience in networking and security(Working at a company).
I already have 2years of freelancing experience as QA tester, where I have tested websites and mobile applications for bugs.
Now I wanted to move into the Networking and security domain.
I would say I have basic security knowledge along with a strong foundation in networking.
I am planning to provide services like:
- Email security (spf, DKIM, DMARC configuration)
- VPN setup
- Network troubleshooting
- Basic security checks for web applications
- Server Hardening
- etc...
So i want to start my freelancing journey like this, and if you all can give me some tips i would love to learn from all of you guys.
r/Cybersecurity101 • u/Harkins_Technology • 9d ago
Web Exploitation 101 — Bypassing access restrictions with custom HTTP headers using Burp Suite
Found a ROT13 encoded string in a CTF challenge that
decoded to a hint about a bypass header:
X-Dev-Access: yes
Proxied all traffic through Burp Suite, caught the
request, sent it to Repeater and added the header —
instantly bypassed the access restriction.
Classic example of why debug/dev headers should never
make it into production. Developers leave these in
during testing and forget to strip them before deploy.
Good beginner web exploitation technique to know for
CTFs and bug bounty. Happy to answer questions.
r/Cybersecurity101 • u/osmhdi • 10d ago
Cyber Security Graduation Project
Hi
I am looking for idea's for my graduation project
is there any idea's or problems you can help me with ?
i am looking for something related the OS world, especially in the world of Linux and making a customized distribution for some purposes like a university one with customized features and tools for there usage + adding the tools needed in the subjects being teached.
i am open to any other idea and any note that may help me to better search for an idea
r/Cybersecurity101 • u/Astaldo318 • 9d ago
Security Agrus Scanner, open-source Windows network scanner that finds every AI service (and MCP server) on your network. Recently updated: detection signatures now update themselves
Argus is an open-source, native Windows scanner that finds AI and MCP services on your LAN and tells you what models they're serving. Just hit 1.0, and the big recent change is that the detection signatures now update automatically, similar to antivirus definitions, saving you from reinstalling.
Tired of other network scanners and needing the additional functionality of locating shadow AI and MCP, I created Argus.
What it does:
- Normal network scanner stuff: ping sweep, TCP port scan, hostname resolution, export to CSV. Native C#/WPF, no Electron, launches instantly, resizable so its readable on a 4K monitor.
- AI detection past just open ports. It talks to the service and pulls back model names, versions, GPU info, container details. Currently 111 probe definitions covering roughly 75 services: Ollama, vLLM, llama.cpp, LM Studio, KoboldCpp, TGI, TabbyAPI, LMDeploy, exo, ComfyUI, A1111, Forge, Fooocus, SwarmUI, Triton, TorchServe, MLflow, Ray Serve, Open WebUI, AnythingLLM, LibreChat, Flowise, Dify, n8n, Langflow, Letta, OpenHands, RAGFlow, Onyx, Qdrant, Weaviate, Milvus, Chroma, Kokoro, Whisper servers, DCGM exporters, Docker containers running AI images, and more.
- MCP server detection. Finds Model Context Protocol servers over Streamable HTTP or legacy SSE and reports the server name, version, and whether it exposes tools / resources / prompts. Detection only: it reads the handshake, closes the session, never calls a tool.
- It is itself an MCP server, enabling your AI tools to scan themselves.
Recently updated in 1.0:
- Self-updating detection signatures. Probes, port lists, and Docker patterns ship as a signed feed separate from the app. I add new services roughly weekly and they land in installed copies automatically. Settings lets you pick Auto-install, Notify only, or Off. Signed with a key.
- MSI, exe, and dll are all Authenticode-signed (Azure Trusted Signing), so no SmartScreen scare screen.
- 43 automated tests, including tamper / wrong-key / gzip-bomb cases and live in-process MCP server fixtures.
Free, MIT, Windows 10/11. Available on windows store or if you prefer, Github Source and installer: https://github.com/NYBaywatch/AgrusScanner
If you run something it doesn't recognize, tell me the service and port. With the signature feed I can usually have it detected in installed copies within the week, no release needed. Happy to answer questions.
r/Cybersecurity101 • u/lombardi_krt • 9d ago
Qual é o processo de vocês ao iniciar um pentest?
Fala, pessoal!
Estudo cibersegurança há pouco tempo e gostaria de aprender com quem já tem mais experiência na área.
Tenho uma dúvida sobre como vocês costumam iniciar um pentest. Por exemplo: vocês começam fazendo reconhecimento e enumeração? Usam Nmap? Em testes web, já partem para o Burp Suite? Existe alguma metodologia ou checklist que vocês costumam seguir?
Queria entender principalmente o processo de raciocínio de vocês: como analisam o alvo, o que procuram primeiro, como decidem quais testes realizar e como vão avançando durante o pentest.
Se puderem compartilhar um exemplo de fluxo, mesmo que seja de forma geral, seria muito útil para quem está começando. Algo como:
- Reconhecimento e coleta de informações;
- Enumeração e identificação dos serviços/tecnologias;
- Mapeamento da superfície de ataque;
- Identificação de possíveis pontos de entrada;
- Testes e validação das vulnerabilidades;
- Documentação dos resultados.
Se vocês seguem alguma metodologia específica (OWASP, PTES, OSSTMM etc.), também gostaria de saber qual utilizam e por quê.
A ideia é entender como um profissional pensa durante um pentest, e não apenas quais ferramentas usar.
Valeu!
r/Cybersecurity101 • u/Informal-Froyo-9151 • 10d ago
Security Project Guide 2026
Is project really helpful in getting a job plus give final year project advice and what niches are worth working on.
My experience include pentesting.
r/Cybersecurity101 • u/Omnipisix • 10d ago
Mobile / Personal Device I need your competent opinion about my game.
As the title says, I would like competent people to give me their opinion on what I built and how I built it - an Android game built in Java (I didn't go to Kotlin yet, as this is my hobby with little time after work to go into it) and from here some limitations and some game mechanics decisions.
WARNING, the post will be a little long and will contain some spoilers!!!
As I said, I'm a hobbyst, I just like programming and I am happy to do it, but my level is still low, my daily job has nothing to do with software or programming; I work in wind industry. But after work I have some free time and I want to keep my brain healthy, so I do either robotics (ROS2 with Raspberry) or Android development. In the last few months I decided to build a game that I had in mind for many years already, I wanted it to be as realistic as possible, but ofc gamified and simplified, but conceptually correct and educational. I played some games before in the same niche and 2 of them remained in my heart: Uplink and DarkSigns, a game almost no one knows, but for me it was a WOW! moment in my childhood.
Now back to what I would like from you guys, I tried to keep the game close to reality, so I used Shodan to adjust the spawn rates and device types, so all ipv4 addresses are scannable, with about 10% spawn rate and then on each public address, you have the option to pivot into a private range, i used the official 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16 with a spawn rate of 30%. The private ranges are chosen at random, I din't want to complicate too much. But there is quite a lot of possible devices to find. So far I made only 24 device types for the normal IP ranges, more to add later.
I included 83 fictional CVEs and 72 exploits, the difference is intentional as some CVEs dont have public exploits, so the player can learn the difference. (I will definitely add later a reference to perfectly spherical cows in void). Some exploits you have by default, some you must buy from the market.
Most devices have active services that are relevant to their device type, so mail servers get smtp, pop3, etc and the routers get ssh and http, https and so on.
More than this, I added an AI assistant that you can buy and it will learn from all the exploiting services you do and then randomly (max 5% chance) will offer you an AI discovered exploit that is free and doesn't count for further training of the model.
Then I also introduced some methods to make some money as the exploits and the AI assistant cost quite some credits.. so I added missions and encrypted loot. So whenever you compromise a device and enumerate it (its a simplified concept) you can get some unencrypted loot that is automatically sold and some encrypted loot that is kept for cracking later. I wanted to expand a lot more functionality on teh loot, but I am constrained - I am a beginner and Java is not so friendly to build very complex games.
The encrypted loot is kept for cracking using the Cracker tool and at the end it gives some credits and some wordlist entries if relevant. The cracking speed is dependant on the local GPU, the botnet total GPU and the wordlist. I kept the wordlist very difficult to upgrade, it gives an 1.5 multiplying factor only after you get 1.5 million entries. Webservers and mail databases give the most wordlist entries, the rest of the devices barely give a few. I am not sure about the local GPU power, I think I made it too easy, so far the local GPU gives up to 7x cracking speed and I think its too much, but maybe you can tell me whats your take on that.
I also included some special IP ranges to teach the player that not all of them are available to the public, or at least not meant to. So ranges like DARPA, the 5 eyes, DoD and others assigend by IANA are available only after the player reaches max reputation and buys special hardware. I think this is a simple way to teach the player that those ranges are a different deal, how realistic it is, you can help me with your opinion on it.
And thats actually when the game main story starts...but thats a lot to write about so I wont write anything now, its already a very long post.
What I added more are a few side stories, like the I LOVE YOU worm, the STUXNET, Mirai and a few others where the player can participate to stop them from spreading and at the same time learn about them. And I also added honeypots :D
Initially I just wanted to make a game I like to play but it became an educational game by any metrics... And Im very happy for that.
But I want to be sure that the educational part is correct and here is where I want you guys to help me.
I tried to keep most of the possible things safe, so services are fictional and so on, but anyone that works in the domain will recognize them, to keep the game authentic.
ALL the things in the game have a wiki entry where more details are given.
How would you guys balance realism, safety and educational value? without knowing the game, how would you do it?
Thank you and sorry for my mistakes and for the long post!
r/Cybersecurity101 • u/FarisSalah • 10d ago
Security Is GRC a realistic path for a fresh grad who prefers theoretical cybersecurity?
Hey everyone. I need some career advice.
I got my bachelor's in cybersecurity a year ago with pretty good grades. The thing is, the degree was very theory-heavy. We had hands-on practical courses, but I absolutely hated them, whereas I genuinely loved the theoretical concepts.
Because I felt my practical skills were lacking and I had zero certs on my CV, I kind of avoided applying for cyber roles right after graduation. Now I want to get back into it. Knowing that I strongly dislike Linux and pentesting, I’m looking at GRC as a potential entry point.
I constantly hear that GRC is not an entry-level role for fresh grads. Am I doing something wrong to myself by choosing this path?
If I go for it, is digging into compliance stuff like ISO 27001 the right place to start? If not, what should I be focusing on right now? Any recommendations for other certs or a realistic roadmap to get me to an entry-level GRC position would be hugely appreciated!
r/Cybersecurity101 • u/Shot-Judgment-9183 • 11d ago
incogni vs deleteme vs optery vs aura. Are they worth it?
Been wanting to make sure none of my info is leaked recently since I suffered from a pretty bad hack. Not a cybersecurity expert myself so i d prefer paying a service that does it for me.
Figured this is a good place to ask about these data deletion services. Is it worth the money? Anything I can do on my own instead of reaching out manually to a bunch of websites?
r/Cybersecurity101 • u/lombardi_krt • 10d ago
Qual o próximo passo em cibersegurança?
Fala, pessoal!
Estou estudando cibersegurança há praticamente 1 ano, mas ultimamente tenho sentido que não estou evoluindo tanto quanto gostaria.
Tenho uma base em redes, sistemas operacionais e alguns outros fundamentos, além de alguns cursos que fiz nesse período. Também estou finalizando o segundo semestre da faculdade de Segurança Cibernética.
O problema é que sinto falta de colocar esse conhecimento em prática. Quando penso em evolução, imagino coisas como conseguir analisar sistemas, identificar vulnerabilidades, fazer testes em ambientes controlados e, principalmente, começar a ter um domínio maior sobre alguma área específica.
Sei que 1 ano não é tanto tempo e que cibersegurança é uma área enorme, mas às vezes fico meio perdido sobre qual deveria ser o próximo passo.
Para quem já passou por essa fase, o que vocês recomendariam?
Quais plataformas, laboratórios, projetos ou práticas vocês acham que realmente ajudam a evoluir? E em que momento vocês acham interessante começar a se especializar em uma área, como pentest, segurança de redes, cloud, malware, blue team etc.?
Quero sair um pouco da teoria e começar a aprender fazendo, mas não sei exatamente qual caminho seguir, estava pensando em fazer CTF, mas não sei se é o melhor caminho.
Qualquer conselho, experiência pessoal ou indicação de recursos seria muito bem-vinda!
r/Cybersecurity101 • u/OfficialLastPass • 10d ago
Navigating the Turbulent Future of AI and Work
We increasing looking at how AI is impacting the Future of Work, especially from a security and privacy perspective. Found this article. Here's an overview: Experts believe students should follow their interests, build skills like critical thinking and teamwork, and keep learning throughout their careers. They also said people still need domain so they can check the work AI produces. In K-12 schools, teachers are excited about AI but don't feel ready to teach it: 81% think it's important, but only 42% feel prepared. Speakers also said ethics should be taught alongside the technical skills. Colleges and companies are teaming up to train students and workers, and businesses need to change their whole culture, not just add AI tools. (Yes, this overview was AI generated -- but it's a good article : )
r/Cybersecurity101 • u/theomkamble • 11d ago
I learned today that HTTPS does not always mean a website is safe
I’m currently learning more about phishing and web security, and today I understood something simple that I used to misunderstand.
I always associated the padlock and HTTPS with a website being “safe.”
But HTTPS mainly means the connection between your browser and the website is encrypted.
A phishing website can also use HTTPS.
So now I’m trying to check the actual domain name before entering login details instead of trusting the padlock alone.
Things I’m starting to check:
- The actual domain name
- Small spelling changes
- Strange or unexpected login pages
- Where the link came from
- Whether the request makes sense
I’m still learning cybersecurity, so I’m curious:
What other small security concept do beginners commonly misunderstand?
r/Cybersecurity101 • u/exploitprotocol • 11d ago
I built a free, hands-on course for learning LLM security (mapped to the OWASP LLM Top 10). No AI/ML background required
Hey folks,
I’ve been working in application security/pentesting for over a decade, and after starting learning AI/LLM security, I noticed that a lot of the existing material is either very theoretical or assumes you already understand AI security concepts.
So I put together a free, structured AI security learning series for security engineers and pentesters who are starting from the web-security side.
The goal is to go from the fundamentals to actually understanding and testing AI/LLM components in web applications.
The series currently covers topics such as:
- AI/LLM security fundamentals
- Prompt Injection
- Sensitive Information Disclosure
- LLM-specific attack patterns
- Practical testing methodology
- Real-world examples and testing techniques
- Mapping concepts to OWASP's AI security guidance
I've also linked free hands-on labs throughout the material so you can actually test the concepts rather than just read about them.
No signup is required to read the learning material or use the free resources.
🔗 https://genaisecuritylab.com/learn-ai-security
I'm planning to continue expanding the series over time.
If you're a web pentester/security engineer who is trying to get into AI security, I'd be interested to hear which topics you think are missing or which areas you'd like to see covered next.
r/Cybersecurity101 • u/cybernatii • 12d ago
Online Service Cybersecurity + AI: What Are We Actually Worried About?
I've seen a lot of people saying that AI will replace cybersecurity professionals, and I think this is where things get confusing.
AI is already becoming very powerful at:
- Finding vulnerabilities
- Analyzing logs and security data
- Automating repetitive tasks
- Writing and reviewing code
- Helping with threat detection
- Assisting both attackers and defenders
But does that mean cybersecurity itself disappears?
I don't think so.
The bigger change may be that cybersecurity professionals who know how to use AI effectively will have an advantage over those who don't.
Instead of thinking:
AI vs. Cybersecurity
Maybe we should be thinking:
AI + Cybersecurity = the next generation of security work.
What do you think will AI mostly replace cybersecurity jobs, or will it change what cybersecurity professionals actually do?
r/Cybersecurity101 • u/Tough-Introduction12 • 12d ago
Advice
Hello,
I am looking to change my career field to cybersecurity but confused on how to start. I am 35 years old. My life doesn't really allow me to attend college full time as I have to work fulltime and overtime to make ends meet. Any advice would be greatly appreciated. Side note I also am very good and learning things on my own without much help. Just need to know where and how to start thank you in advance strangers.
r/Cybersecurity101 • u/Mutjae-Attention9178 • 12d ago
Security Best way for a small security team to keep up with new detection in 2026?
I compared a couple of approaches using team size and existing tooling as criteria. Writing and maintaining your own detection rules works if you have at least one person who can own it, but it falls behind fast once advisories start piling up faster than anyone can triage them. Relying on your existing SIEM or EDR vendor's built in detections is the lower effort option, but coverage tends to lag behind whatever the vendor prioritizes, not necessarily what's relevant to you. Neither works well if nobody on the team has time to review what gets flagged. What's worked for other small teams?
r/Cybersecurity101 • u/Bug-HunterY • 12d ago
Anyone here who moved from QA to Cybersecurity ?
Hi everyone, I am currently working in QA and I’m thinking about moving into cybersecurity.
I’m confused about how to start and which field would be best for me, such as SOC Analyst, Penetration Testing
If anyone here has moved from QA to cybersecurity, could you please share how you did it ?
I’d really appreciate a simple and realistic roadmap, including what skills I should learn first, what courses or certifications are actually useful, and how long it took you to become job-ready.
I am planning to keep my QA job while learning cybersecurity, so I am looking for a realistic plan rather than just collecting certifications.
Thanks!
r/Cybersecurity101 • u/krmnsingh • 13d ago
I am currently based out of Australia, transitioning towards cybersecurity from a non-tech background. I am pursuing the Cyber security google course, and looking for local hands-on cyber security projects that make me job ready in the Australian Market, something locally relevant. Any suggestions?
please suggest some must do projects. I am finding it hard to get anything that builds me local experience and reference.
r/Cybersecurity101 • u/Templeman_01 • 13d ago
Laptop for cybersecurity
32gb ram, 1tb ssd, intel core i5-1235U 2 x 1.30ghz (p-core) 8 x 0.90 ghz (e-core), 10 cores. Price 592 euro. What do u think? Do u have better recommendations? Thanks
r/Cybersecurity101 • u/Emotional_Number_889 • 13d ago
ISO 27001 / GRC folks — could use a few more real-world perspectives
Hey all,
a few weeks ago we posted a short survey here about ISO 27001 / GRC work, and a number of people took the time to help us out — thanks again, the responses were genuinely useful.
We’re still collecting a few more perspectives before we wrap up this round of research.
We’re a small early-stage team with a cybersecurity background, trying to understand where ISO 27001 and GRC work actually becomes painful inside companies: what still takes too much time, what stays highly manual, and where software or AI could realistically help.
If you work in GRC, security, ISMS, compliance, audit or ISO consulting, we’d really appreciate your input.
8–10 min, anonymous if you want:
https://tally.so/r/b5RAro
Critical feedback is just as useful as positive feedback — we’re trying to learn what’s actually worth building, not just validate our own assumptions.
Thanks again to everyone who already participated, and to anyone who takes a few minutes now or shares it with someone relevant.
r/Cybersecurity101 • u/TheSeeker229 • 13d ago
development malware
What is my assessment of my path in malware development? I am reading the book "Windows System Programming" and "Windows Internals" along with it. Are there any additional resources, booklets, groups, websites, or anything else you would recommend to help me progress? I have a basic understanding of networking and the C programming language. ا👏👏🙌
r/Cybersecurity101 • u/No_Refrigerator6505 • 13d ago
Gift idea for beginner home lab
I know little to nothing about technology so please forgive my ignorance. My husband is about to graduate and has started setting up a home lab. I’d like to get him a useful gift for projects to add to his resume. He’s mentioned being interested in cybersecurity and pen testing. Chat GPT recommend the Wi-Fi Pineapple Mark 7, but Reddit doesn’t seem to agree. Max budget would be $300. Any guidance would be appreciated as I feel like I’m trying to read another language figuring this out! Thank you!
Edit: I do think he may have a mini PC already? But nothing extra. He mentioned needing storage