Career guides by Science of Apps for 2027 · Free security

Free cybersecurity
certifications worth it

The best free cybersecurity options for 2027 are ISC2 Certified in Cybersecurity (ISC2 has offered free training and exams through promotions), Google Cybersecurity with Coursera financial aid, Harvard's CS50 for computing foundations, Microsoft Learn's free security training, and freeCodeCamp's information security certification. Security+ and CISSP are paid.

By , FounderUpdated 4 min read

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Quick answer: Are there free cybersecurity certifications in 2027?

  1. Real credential — ISC2 CC, often free through promotions.
  2. Full programme — Google Cybersecurity with financial aid.
  3. Foundations — Harvard CS50, free.
  4. Practice — Microsoft Learn and freeCodeCamp.

Key takeaways

  • ISC2 CC is the best free entry credential when its promotion runs.
  • Free study plus a home lab can prepare you for paid Security+.
  • Check official pages for current offers before you plan.

Security is expensive to certify at senior level, but starting is cheap. One respected entry credential has often been free, the training for most others is free, and a home lab costs nothing. These five options build real security foundations without paying.

Are there free cybersecurity certifications in 2027? At a glance: Real credential; Full programme; Foundations; Practice.
At a glance: Are there free cybersecurity certifications in 2027?

Five free cybersecurity options

Free training in every case; ISC2 CC's exam has been free through promotions. Checked 3 November 2026.

Free cybersecurity certifications in 2027: issuer, cost and format from official pages (costs as of November 2026)
#CertificationCostTimeProve it free
1ISC2 Certified in Cybersecurity (CC)ISC2See ISC2 page1Check issuerFree test
2Google Cybersecurity Professional CertificateGoogle / Coursera$49/mo Coursera plan26 months at 7 hours a weekFree test
3CS50: Introduction to Computer ScienceHarvard UniversityFree3Self-pacedFree test
4Microsoft Learn Free AI & Cloud TrainingMicrosoftFree4Self-pacedFree test
5freeCodeCamp CertificationsfreeCodeCampFree5Self-pacedFree test

Prove it free before you pay for an exam

Science of Apps · free certification tests

Take the free test first. Pay for an exam only when you pass.

Every pick above has a matching free practice test on Science of Apps, one of the world's largest libraries of free certification tests (1,200+). Check your level before you pay for an exam, or add a verifiable credential to LinkedIn while you study. (Disclosure: we publish these tests; the certifications above earn us nothing.)

Each free option, and what it builds

  1. ISC2ISC2 Certified in Cybersecurity (CC)A real credential, often freeSee ISC2 page
  2. CourseraGoogle Cybersecurity Professional CertificateA full programme with aid$49/mo Coursera plan
  3. Harvard UniversityCS50: Introduction to Computer ScienceComputing foundations, freeFree

ISC2 · EntryTop pick for 2027

ISC2 Certified in Cybersecurity (CC)

Cost
See ISC2 page1
Entry
No work experience required

ISC2's entry credential needs no experience. ISC2 has run promotions offering free online training and a free exam; check the official page for the current offer.

Best fora real credential, often free

Google / Coursera · Beginner

Google Cybersecurity Professional Certificate

Cost
$49/mo Coursera plan2
Time
6 months at 7 hours a week

A six-month programme with Python, Linux, SQL and SIEM tools. Coursera's financial aid can cover the cost. Google's professional certificate teaches security basics with Python, Linux, SQL and SIEM tools through hands-on labs. It's designed for beginners, takes about six months at seven hours a week and offers financial aid.

Best fora full programme with aid

Harvard University · Beginner

CS50: Introduction to Computer Science

Cost
Free3

Harvard's free introduction to computer science, with a free certificate. Security analysts need these programming and systems basics. Harvard's free introduction to computer science teaches C, Python, SQL and web development through demanding problem sets, with a free certificate. An optional paid verified certificate is available through edX.

Best forcomputing foundations, free

Microsoft · All levels

Microsoft Learn Free AI & Cloud Training

Cost
Free4

Microsoft Learn's security, compliance and identity paths are free, with sandboxes for practice. Microsoft Learn's free learning paths and sandboxes cover every Microsoft certification, from Azure and AI to Power BI. The training is free; only the certification exams are paid, and they're priced by country.

Best forfree security training

freeCodeCamp · Beginner–Intermediate

freeCodeCamp Certifications

Cost
Free5

freeCodeCamp's Information Security certification is free and project-based. freeCodeCamp's free certifications in web design, JavaScript, Python, data analysis and more are earned by building projects that must pass automated tests. The projects make useful portfolio pieces.

Best forfree info-security projects

A free path to your first security exam

Diagram of 4 steps for a free path to your first security exam: 1. Month 1; 2. Months 2–3; 3. Month 4; 4. Month 5.
A free path to your first security exam
  1. Month 1 — ISC2 CC training and exam.
  2. Months 2–3 — CS50 weeks on C, Python and SQL.
  3. Month 4 — home lab: Linux, a SIEM and one detection rule.
  4. Month 5 — take Science of Apps' free Security+ practice test; book Security+ when you pass it comfortably.

How we ranked these picks

We listed only training free on the issuer's site as of 3 November 2026 and flagged offers that depend on promotions. Five options, not padded.

Frequently asked questions

Is ISC2 CC really free?

ISC2 has run promotions offering free training and a free exam for CC. Check ISC2's official page for the current offer, as terms can change.

Is Security+ free?

No. Security+ is a paid exam, with voucher prices that vary by country. You can prepare for it with free resources.

Can I get a cybersecurity job with free certifications?

Free credentials such as ISC2 CC plus a home lab can get interviews for entry roles. Many employers still ask for Security+.

Is the Google Cybersecurity certificate free?

It's on Coursera by subscription, with financial aid available. You can audit many courses free.

Is there a free cybersecurity test?

Yes. Science of Apps offers free cybersecurity practice tests, instantly graded with a verifiable certificate.

Sources

  1. ISC2 — ISC2 Certified in Cybersecurity (CC), official page (checked 3 Nov 2026)
  2. Google — Google Cybersecurity Professional Certificate, official page (checked 3 Nov 2026)
  3. Harvard University — CS50: Introduction to Computer Science, official page (checked 3 Nov 2026)
  4. Microsoft — Microsoft Learn Free AI & Cloud Training, official page (checked 3 Nov 2026)
  5. freeCodeCamp — freeCodeCamp Certifications, official page (checked 3 Nov 2026)
  6. Checked November 4, 2026. Figures that change — fees, salaries, prices — are reviewed every six months; if something is out of date, tell us.
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Start with the free ISC2 CC (Certified in Cybersecurity) Practice Test. 1,200+ free, test-based certifications graded on our server. Pass and get a founder-signed certificate with a credential ID employers can verify.

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