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Learn core concepts of cybersecurity, risk management, access control, buffer overflows, protocol spoofing, cryptography, and more in our free Information Security Management Fundamentals course.
2h55m
15 exercises
Explore MIT's Computer Systems Security course covering topics like control hijacking, web security, SSL, user authentication, and more. Enhance your cyber security skills today!
29h44m
20 exercises
Enhance your cybersecurity skills with Google's free IT Security course. Covers Python, Linux, threat detection, and more. Perfect for beginners aiming for a cybersecurity career.
15h04m
18 exercises

Free CourseCompTIA Security course
26h11m
41 exercises

Free CourseAdvanced Topics in Cryptography
22h34m
9 exercises

Free CourseCyber security
2h07m
24 exercises

Free CourseInformation security lessons
7h15m
11 exercises

Free CourseIntroduction to Cybersecurity
7h43m
6 exercises

Free CourseCyber Security Masterclass
1h36m
6 exercises

Free CourseCyber security full course
11h06m

Free CourseCyber Security full course
11h03m

Free CourseCyber Security
11h30m
7 exercises

Free CourseCyber Security For Beginners
37h48m
6 exercises

Free CourseApplied Cryptography: AES, RSA, ECC, TLS, Tor and Bitcoin
New
13h20m
16 exercises

Free CourseModern Cryptography for Beginners: Encryption, Hashing, Signatures and Secure Computation
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24h07m
25 exercises

Free CourseModern Applied Cryptography: AES, RSA, ECC, Hashing and Post-Quantum Basics
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37h34m
23 exercises

Free CourseFoundations of Cryptography: Symmetric, Public-Key, Hashing and Signatures
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32h51m
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Free CourseSQL Injection Masterclass - Web Security Academy Labs
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9h42m
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Free CourseCyber Security CISSP Exam
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9h39m
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Free CourseCryptography and Network Security
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14h43m
28 exercises

Threat Modeling for Beginners: How to Think Like an Attacker to Build Safer Systems
Learn threat modeling step by step to identify risks, prioritize threats, and design safer systems with practical cyber security habits.

Security Operations Center (SOC) Fundamentals: How Blue Teams Detect, Triage, and Respond
Learn SOC fundamentals including detection, triage, investigation, and response to build practical cyber security defense skills.

Building a Practical Cyber Security Learning Path: From First Concepts to Hands-On Defense
Learn a practical cyber security learning path from fundamentals to hands-on defense, including hardening, monitoring, and incident response.

An Introduction to Node.js: Building Fast and Efficient Backends
Discover what Node.js is, its key features, and why it’s a top choice for building fast, scalable, and efficient backend applications.

A Beginner’s Guide to Progressive Web Apps: Bridging Native and Web Experiences
Learn how Progressive Web Apps (PWAs) blend web and native features to deliver fast, secure, and offline-capable user experiences across all devices.

Unlocking the Secrets: An Introduction to Digital Forensics in Cyber Security
Digital forensics uncovers digital evidence to solve cybercrimes, supports legal action, and strengthens security, offering growing career opportunities in tech and law enforcement.

The Role of Digital Forensics in Cyber Incident Response
Digital forensics is key in incident response—helping uncover what happened, secure evidence, and support legal action after a cyberattack.

Digital Forensics Tools: Essential Software for Modern Investigations
Explore essential tools used in digital forensics to uncover, preserve, and analyze cyber evidence—key for solving crimes and securing digital environments.
Web Development
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Office Productivity (Excel, Word and More)
Artificial Intelligence and Machine Learning
App Development
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Cloud Computing and Web Servers
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Programming Fundamentals
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With the increasing importance of protecting digital information, understanding cyber security has never been more critical. We offer 18 free online courses designed to enhance your knowledge and skills in various aspects of cyber security. These courses are ideal for anyone looking to safeguard computer systems, networks, and digital assets from cyber threats.
Our courses cover a broad range of topics including Computer Systems Security, Cyber Security, Information Security Lessons, Cyber Security Full Course, IT Security, Cyber Security Masterclass, Network Penetration Testing Course, Information Security Management Fundamentals, Cryptography, and Network Security.
You will also find advanced topics such as Introduction to Cybersecurity, Advanced Topics in Cryptography, Cyber Security CISSP Exam preparation, and the CompTIA Security Course. Each course is designed to provide practical skills and knowledge that can be applied directly to protect digital information against unauthorized access and cyber threats.
Moreover, upon completion of these courses, you will receive a free certification to validate your newfound skills.
To start learning, you'll need to install the Cursa application on your mobile device. Android users can download the app from the Google Play or at App Store ( Apple ).
In all, there are more than 1000 courses, divided into more than 400 categories in 5 different languages, where we provide the digital certificate for free to everyone.
About
After completing the course you will have free access to the digital certificate of course completion.
How to get it for free: It is only possible to issue the certificate in our application, which can be downloaded from Google Play or App Store, so you can take the online course here and use the app only to issue the certificate. Being that you can also take the courses through the app if you wish.
In digital format: After completing the course and generating the certificate through the application, the image of the same will be generated in the photo gallery of your cell phone and will also be sent to your email.
Why the certificate is important: You can use it to improve your resume, to rise in careers or positions, to enrich your knowledge and among several other applications.
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What are people saying about free online courses of Cyber Security
Masooma Batool
GCD(529,123): 529 mod 123 = 37 123 mod 37 = 12 37 mod 12 = 1 12 mod 1 = 0 → GCD = 1 (co-prime)
CourseCryptography and Network Security
Masooma Batool
n=3009. √3009≈55. 55²=3025, 3025-3009=16=4². So factors: (55-4)(55 4)=51×59.
CourseCryptography and Network Security
Johannes Sheriff
Am lost. The terminologies are too much.
CourseComputer systems security
Masooma Batool
Solve 2^X \equiv 4 \pmod{7}. Powers of 2 mod7: 2^1=2, 2^2=4, 2^3=1, 2^4=2, ... So 2^2 \equiv 4 \pmod{7}. Thus X=2.
CourseCryptography and Network Security
Josephine Serebour
I love this content as it gives me simple understanding to IT Basics.
CourseIT Security
Khetre Dk
Notice cource. if you know you know!!
CourseComputer systems security
Dennis Jim
Indepth knowledge of computer network security.
CourseComputer systems security
Masooma Batool
1. Solve 11^{23} \mod 187 . First, express the exponent 23 in binary: 23 = 16 4 2 1 = 10111_2 . Now, compute powers of 11 modulo 187:
CourseCryptography and Network Security
Rich Rios
Just finished CS Intro Part 1 — Eli’s teaching style is great and funny. I’ll post another review after a few more sections.
CourseCyber Security
Rashid
can I get a job with only this certificate?
CourseCyber security full course