KDP categories · Top KDP authors
Security & Encryption (Computers & Technology, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Security & Encryption (Computers & Technology, Kindle eBooks), updated Nov 3, 2026: median price $10.99, median 50 reviews, average rating 4.5 and a KDPTop opportunity score of 33/100 (highly competitive).
| Price range (middle 50%) | $4.99 – $23.19 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 27% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 21% of the parent category Computers & Technology (238), one of the easier corners under it.
- 27% of its best sellers came out in the last 90 days, more than in 93% of Kindle eBooks categories: readers here keep buying new titles.
- At $10.99 its median price beats 90% of Kindle eBooks categories, leaving more margin per copy.
Top 10 Security & Encryption best sellers
-
Dark Wire: The Incredible True Story of the Largest Sting Operation Ever
by Joseph Cox
- List rank#1
- Price$1.99
- Rating4.4
- Reviews880
-
CUCKOO'S EGG
by Clifford Stoll
- List rank#2
- Price$13.99
- Rating4.6
- Reviews3,311
-
Identity Under Attack: An Industry Founder Exposes the Hidden Security Crisis in Modern Enterprises
by Mark McClain
- List rank#3
- Price$9.99
- Reviews-
-
You’re Already a Target: Stop AI Scams, Hackers, and Identity Theft Before They Happen
by Corey White
- List rank#4
- Price$4.99
- Reviews-
-
Household Cybersecurity: A CPA’s Guide to Protecting Your Accounts and Personal Information (Financial Topics in 100 Pages or Less)
by Mike Piper
- List rank#5
- Price$9.99
- Rating4.9
- Reviews32
-
One Click
by Andrea Mara
- List rank#6
- Price$4.99
- Rating4.0
- Reviews5,571
-
System Design Interview – An Insider's Guide: Volume 2
by Alex Xu
- List rank#7
- Price$30.63
- Rating4.6
- Reviews1,584
-
CompTIA A+ 220-1201 and 220-1202 Study Guide: The Definitive Guide to Mastering Core 1 & 2 for Confident Exam Success with Hands-On Labs and Practical Exercises
by Dashiell Hambling
- List rank#8
- Price$0.52
- Rating4.4
- Reviews16
-
Sandworm: A New Era of Cyberwar and the Hunt for the Kremlin's Most Dangerous Hackers
by Andy Greenberg
- List rank#9
- Price$9.99
- Rating4.6
- Reviews3,246
-
CompTIA® Security+® SY0-801 Certification Guide: Build essential cybersecurity skills and pass the SY0-801 exam on your first attempt
by Ian Neil
- List rank#10
- Price$34.19
- Rating5.0
- Reviews10
Subcategories
Same niche in Books: Security & Encryption
FAQ
Is Security & Encryption a good niche for Amazon KDP?
Its KDPTop opportunity score is 33/100, which makes it highly competitive. The median best seller has 50 reviews and sells for $10.99.
How many reviews do you need to rank in Security & Encryption?
The median best seller has 50 reviews, and 60% of them have fewer than 100.
What do Security & Encryption best sellers cost?
The median price is $10.99; half of the best sellers are priced between $4.99 and $23.19.
Can new books break into Security & Encryption?
27% of the current best sellers were released in the last 90 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.