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6 Best Data Security Courses for Advanced Learners

We compared 6 Data Security courses currently listed on Udemy, priced from $19.99 to $59.99. 3 of them teach the subject directly and 3 are built around a certification exam. They are ordered by our CourseAsk score, which is built from how thoroughly each course describes what it teaches, whether it comes from a named institution, and how it compares on price — not from star ratings, which our course data does not include.

Courses compared
6
Price range
$19.99 – $59.99
Providers
Udemy
Last updated
18 Sep 2026
How these 6 courses were chosen

Every course below is a real, currently listed course from Udemy, matched to "data security" by our catalog and ordered by our CourseAsk score. Courses whose own title names the topic rank above those only tagged with it.

The grade on each entry scores how much the provider publishes about the course before you pay — the length and detail of the description, whether it lists learning outcomes and objectives — and whether a named university or institution stands behind it. A is fully documented and institution-backed; E is little more than a title and a price. Courses with almost nothing published are left ungraded rather than marked down, because an unknown course and a poor one are not the same thing.

There are no star ratings on this page — the course feeds we license do not include them, and we would rather leave a column out than fill it with a number we cannot stand behind. What we do have is price: these range from $19.99 to $59.99, as listed by the provider when we last updated the page.

  1. 1
    Udemy Certificate Grade B

    SQL Masterclass: Beginner to Expert

    Unlock the Power of SQL: From Beginner to ExpertJoin our comprehensive SQL Masterclass and transform your career with in-demand database skills. This 4-phase journey takes you from SQL foundations to advanced query exper...

    $59.99
    listed price
  2. 2
    Udemy Certificate Grade B Lowest price here

    MongoDB Certification Training (beginner to expert)

    A warm welcome to the MongoDB course by Uplatz.MongoDB is a very popular NoSQL database that is fast and scalable. When scalability and speed are required, this database shines. It is a document database which imposes ve...

    $19.99
    listed price
  3. 3
    Udemy Certificate Grade C

    Advanced Tally ERP 9 Mastery Course | Hindi | 2024

    Take your Tally skills to the next level with our Advanced Tally ERP 9 Mastery Course! Designed for experienced Tally users, this course dives deep into the sophisticated features and functionalities of Tally ERP 9, enab...

    $29.99
    listed price
  4. 4
    Udemy Certificate Certification prep Grade B

    Snowflake Advanced: SnowPro® Advanced: Architect ARA-C01

    This course is designed for data professionals aiming to excel in the Snowflake Advanced Architect Certification. Whether you’re an experienced architect, data engineer, IT professional, or consultant, this comprehensive...

    $19.99
    listed price
  5. 5
    Udemy Certificate Certification prep Grade C

    SC-100: Microsoft Cybersecurity Architect Experts

    The SC-100: Microsoft Cybersecurity Architect Experts exam contains the official Microsoft objectives that will provide proper knowledge to the candidates with the goal to upgrade their skills or simply to confirm their...

    $19.99
    listed price
  6. 6
    Udemy Certificate Certification prep Grade C

    Microsoft Cybersecurity Architect Experts - SC-100

    The SC-100: Microsoft Cybersecurity Architect Experts exam contains the official Microsoft objectives that will provide proper knowledge to the candidates with the goal to upgrade their skills or simply to confirm their...

    $19.99
    listed price

Best Data Security Courses for Advanced Learners compared

Prices shown are the provider's listed price when we last updated this page. Confirm on their site before enrolling.

What the prices here tell you

The 6 priced courses on this page run from $19.99 to $59.99, with the middle of the range around $19.99 — a spread of $40.00. The options are closely priced, so cost is unlikely to be your deciding factor. A higher price on this page usually reflects who is behind the course rather than how much material it contains, so it is worth opening two or three at different price points and comparing their syllabus before deciding.

Who is behind these courses

These courses come from Udemy. Everything on this page is sold on the one platform, so the buying experience is the same whichever you pick.

Courses versus exam preparation

3 of the entries here are built around a certification exam rather than teaching Data Security from scratch. They are the right choice only if you already know the material and want to pass a specific exam; if you are starting out, pick one of the taught courses first and come back to exam preparation afterwards.

Before you enrol

Open the provider’s own page and check three things this comparison cannot tell you: when the course was last updated, what the syllabus actually covers in its later sections, and what recent learners say. Prices shown here are the provider’s listed price when we last rebuilt this page on 18 September 2026 — they change often, and a promotion can move them substantially. We earn a commission if you enrol through our links, which costs you nothing and never affects the order courses appear in.

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