Free Cybersecurity Courses for Beginners: 6 Free Places to Start in 2026

如果你想在不花很多钱的情况下进入网络安全领域，可以从高质量的 免费的初学者网络安全课程开始。多个受到尊敬的组织提供免费的入门课程、结构化学习路径、实践实验室和安全基础知识。

本指南专注于对完全初学者有用的资源，包括没有任何网络安全工作经验的学习者。它还解释了首先学习什么、如何安全实践，以及如何将免费培训转化为实际的网络安全学习计划。

随着组织面临不断变化的威胁和新技术，网络安全技能依然重要。2025年ISC2网络安全劳动力研究调查了16,029名来自多个地区的网络安全从业者和决策者，发现技能需求仍然是一个主要问题，95%的受访者报告至少有一种技能需求。citeturn0search0

目录

1. 初学者最佳免费网络安全课程
2. 免费网络安全课程比较
3. 初学者应该先学习什么
4. 30天免费网络安全学习计划
5. 如何安全地实践网络安全
6. 如何将免费课程转化为职业技能
7. 专家建议
8. 应避免的常见错误
9. 常见问题解答
10. 结论

初学者最佳免费网络安全课程

1. Microsoft Learn：描述网络安全的概念

Microsoft Learn的网络安全基础学习路径 是希望获得结构化初级教学的人的一个强有力的起点。

该学习路径包含六个模块，根据Microsoft的说法大约需要2小时17分钟。没有先决条件，涵盖了威胁、恶意软件、密码学、身份验证与授权、网络威胁、设备安全和应用安全。citeturn1search0

• 级别： 初学者
• 费用： 免费的学习内容
• 先决条件： 无
• 最佳用于： 希望接受结构化介绍的学习者

2. TryHackMe：预备安全

TryHackMe的预安全路径 旨在为从零开始的人设计。通过指导的基于浏览器的练习，它介绍了计算机、网络、网络、攻击性安全、防御性安全和网络安全职业。

TryHackMe表示，它的初学者路径不需要之前的网络安全经验，也不需要本地设置。它的平台还提供了数以百计的免费培训实验室，尽管某些内容和功能是收费的。 引用turn0search4turn0search9

• 级别： 初学者
• 费用： 提供免费内容；也有高级内容
• 格式： 互动实验室和指导学习
• 最佳用于： 通过实践学习的人

3. Fortinet培训学院

Fortinet培训学院 提供无成本的自定进度网络安全培训。Fortinet表示，其自定进度的课程免费开放，而某些按需实践实验室可单独购买。 引用turn0search7turn0search12

Fortinet的入门材料对于想在深入技术安全主题之前了解网络安全概念的学习者非常有用。它的认证程序也包括初级网络安全培训。

• 级别： 根据课程从初级到高级
• 费用： 免费自定进度培训
• 最佳用于： 对安全基础和基于供应商的安全技能感兴趣的学习者

4. Microsoft Learn：安全、遵从性和身份基础

在学习基本网络安全概念后，你可以继续学习微软的 安全、合规和身份学习路径.

初学者材料介绍了诸如零信任、共享责任、加密、身份提供者、数据驻留和安全解决方案等概念。微软将这些资源列为其安全、合规和身份基础认证的准备。 引用turn1search9turn1search7

• 级别： 初学者
• 费用： 免费的学习内容
• 最佳用于： 对云和身份安全感兴趣的学习者

5. TryHackMe网络安全101

一旦你理解了基础知识， TryHackMe网络安全101 提供了进入实用网络安全的更广泛途径。当前平台将网络安全101列为易级别学习路径，并提供针对SOC运营和渗透测试等领域的单独路径。 引用turn0search1

利用您可用的免费材料来巩固网络、Linux、网络安全、防御性安全和常见攻击概念。在理解基础之前，不要急于进入高级利用。

6. ISC2免费网络安全资源

ISC2 提供免费的网络安全网络研讨会，涵盖云安全、人工智能驱动的威胁、风险管理、合规性和新兴技术等主题。 citeturn1search15

对于初学者来说，在2026年有一个重要的区别：ISC2一百万网络安全认证计划已结束新注册。ISC2表示，该项目在2026年5月20日停止了新注册，全球已有超过一百万人注册。现有参与者可以在项目规定的截止日期内继续使用有效的课程访问或考试代码。 citeturn1search5turn1search6

因此，不要假设以前的免费 CC 课程和考试仍对新申请者开放。在依赖该优惠之前，请查看 ISC2 当前的培训页面。

免费网络安全课程比较

初学者应该先学习什么

初学者常犯的最大错误之一是直接跳入渗透测试工具。网络安全在您首先建立计算和网络基础时更易于理解。

1. 计算机基础

了解操作系统、文件、进程、用户、权限、应用程序和基本系统管理是如何工作的。

2. 网络基础

学习 IP 地址、DNS、HTTP 和 HTTPS、TCP 和 UDP、端口、路由器、交换机、防火墙、VPN 和基本网络故障排除。

3. Linux基础

学习命令行、文件权限、进程、用户、网络命令、软件包管理和基本shell使用。

4. 安全基础

理解保密性、完整性、可用性、身份验证、授权、最小权限、加密、哈希、恶意软件、网络钓鱼、漏洞管理和事件响应。

5. 实际安全

在掌握基础知识后，开始进行受控实验室的工作。练习侦察、日志分析、网络安全概念、网络监控、漏洞识别和仅在您拥有或明确授权测试的系统中的基本防御技术。

30天免费网络安全学习计划

第1周：学习基础知识

• 完成初学者网络安全基础路径。
• 了解常见的网络威胁。
• 学习恶意软件、网络钓鱼、身份验证和基本防御。
• 为重要的网络安全术语创建笔记。

第2周：学习网络

• 学习IP地址和DNS。
• 了解常见端口和协议。
• 理解浏览器如何与网络服务器通信。
• 练习基本的网络故障排除。

第3周：开始实践实验室

• 开始初学者的TryHackMe路径。
• 练习Linux命令。
• 完成入门的防御安全练习。
• 在每个实验室后记录您所学到的内容。

第4周：选择一个专业方向

探索主要的网络安全职业领域，并选择一个进一步调查：

• 安全运营中心（SOC）
• 事件响应
• 数字取证
• 渗透测试
• 云安全
• Application security
• Identity and access management
• Governance, risk, and compliance

如何安全地实践网络安全

Cybersecurity training often involves offensive techniques. Practice only in environments where you have explicit permission.

Beginner platforms such as TryHackMe provide controlled environments where learners can work through security exercises without attacking real organizations. TryHackMe describes its training as browser-based and designed around intentionally vulnerable systems and guided exercises. citeturn0search1turn0search4

良好的实践环境

• Training platforms and cybersecurity labs
• Virtual machines you own
• Capture-the-Flag environments
• Purpose-built vulnerable applications
• School or workplace labs where testing is authorized

Never scan, exploit, access, disrupt, or attempt to bypass security controls on systems you do not own or have permission to test. Learning cybersecurity should strengthen security rather than create new victims.

如何将免费课程转化为职业技能

建立学习档案

Do not rely only on course completion certificates. Document practical work that demonstrates what you understand.

• Write short lab reports.
• Create a home cybersecurity lab.
• Document Linux and networking exercises.
• Build a small log-analysis project.
• Write explanations of security concepts.
• Record the tools and commands you learned.
• Participate in legitimate CTF challenges.

逐步学习工具

Beginners may encounter tools such as Wireshark, Nmap, Burp Suite, Linux security utilities, SIEM platforms, and vulnerability scanners. Learn what each tool does before trying to master every feature.

考虑稍后获得认证

Free courses are an excellent way to determine whether cybersecurity is right for you. After building fundamentals, you can investigate certifications that match your target role. Avoid collecting certifications without developing practical skills alongside them.

学习网络安全的专家建议

• Start with networking. Understanding how systems communicate makes later security topics much easier.
• Practice consistently. Thirty focused minutes every day can be more useful than occasional long study sessions.
• Use multiple learning formats. Combine structured courses, documentation, labs, and written notes.
• Keep a personal glossary. Record unfamiliar terms and explain each one in your own words.
• Do not chase every new tool. Security concepts are more durable than individual tools.
• Learn defensive thinking. Understanding how to detect and mitigate attacks is just as important as understanding how attacks work.
• Verify current course availability. Free programs can change, expire, or move behind a paid tier.
• Use official sources. Training from recognized vendors and professional organizations can provide a more reliable foundation.

初学者应避免的常见错误

• Starting with advanced penetration testing before learning networking.
• Trying to memorize tools instead of understanding concepts.
• Practicing attacks against systems without permission.
• Ignoring Linux and command-line fundamentals.
• Taking many courses without completing practical exercises.
• Assuming a certificate automatically qualifies you for a cybersecurity job.
• Using outdated tutorials without checking current documentation.
• Ignoring communication, documentation, and analytical skills.
• Expecting a free course to cover every area of cybersecurity.

常见问题解答

1. 作为完全的初学者，我可以免费学习网络安全吗？

Yes. You can learn cybersecurity fundamentals for free using platforms such as Microsoft Learn, TryHackMe’s available free content, Fortinet’s self-paced training, and free professional webinars. The key is to combine theory with practical exercises.

2. 在学习网络安全之前，我需要了解编程吗？

No. Programming is useful for many cybersecurity roles, but you can begin with computer fundamentals, networking, Linux, security concepts, and practical labs. You can add Python or another programming language as your skills develop.

3. 我应该首先参加哪个免费的网络安全课程？

A beginner with no previous experience can start with Microsoft’s cybersecurity fundamentals learning path because it has no prerequisites and covers core topics. Learners who prefer hands-on practice can also begin with TryHackMe’s Pre Security path. citeturn1search0turn0search4

4. 免费的网络安全课程值得吗？

Yes, especially for building foundational knowledge and testing whether you enjoy the field. Their value increases when you combine them with hands-on labs, projects, documentation, and continued study.

5. 在参加了免费的课程之后，我可以找到网络安全的工作吗？

Free courses alone do not guarantee employment. Employers may also look for practical skills, problem-solving ability, communication, experience, projects, and sometimes certifications. Use free courses as the foundation of a broader learning and portfolio strategy.

6. TryHackMe完全免费吗？

TryHackMe offers hundreds of free training labs and free learning content, but it also has paid content and premium features. The exact free offering can change, so check the current platform before planning an entire curriculum around it. citeturn0search6turn0search9

7. ISC2的免费网络安全认证课程还对新学习者开放吗？

The former ISC2 One Million Certified in Cybersecurity initiative is no longer accepting new participants. ISC2 announced that new enrollment ended May 20, 2026 after the program surpassed one million enrollments. Existing participants may still have access under the program’s stated conditions and deadlines. citeturn1search5turn1search6

8. 学习网络安全需要多长时间？

There is no fixed timeline. You can learn basic concepts in weeks, but developing job-ready skills requires sustained practice. A realistic beginner approach is to study fundamentals first, complete hands-on labs, build projects, and then specialize in a cybersecurity area.

结论

Free cybersecurity courses for beginners make it possible to start learning without a large training budget. Microsoft Learn can provide a structured foundation, TryHackMe can add practical lab work, Fortinet provides free self-paced security training, and ISC2 offers free educational resources such as webinars. citeturn1search0turn0search4turn0search7turn1search15

The most effective path is not simply to collect course certificates. Build a foundation in computing, networking, Linux, and security principles, then practice safely in authorized labs and document your progress.

Cybersecurity is a continuously changing field. The 2025 ISC2 study highlights the continuing importance of developing relevant skills as technology and security requirements evolve. citeturn0search0

行动号召

Ready to start? Choose one beginner course today, study for at least 30 minutes, and complete your first practical exercise. Then build a simple 30-day learning routine and track what you learn. Consistent practice is the fastest way to turn free cybersecurity training into useful skills.

来源与延伸阅读

• Microsoft Learn – Describe the concepts of cybersecurity
• TryHackMe – Pre Security beginner path
• Fortinet培训学院
• ISC2 – 2025 Cybersecurity Workforce Study
• ISC2 – Free Cybersecurity Webinars