KDP categories · Top KDP authors
Viruses: Amazon KDP category data
Amazon Books Best Sellers data for Viruses, updated Nov 3, 2026: median price $32.25, median 40 reviews, average rating 4.6 and a KDPTop opportunity score of 35/100 (highly competitive).
| Price range (middle 50%) | $22.43 – $45.50 |
|---|---|
| Average rating | 4.6 |
| New releases (90 days) | 12% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 27% of the parent category Security & Encryption (151), one of the easier corners under it.
- At $32.25 its median price beats 90% of Books categories, leaving more margin per copy.
Top 10 Viruses best sellers
-
Sandworm: A New Era of Cyberwar and the Hunt for the Kremlin's Most Dangerous Hackers
by Andy Greenberg
- List rank#1
- Price$17.69
- Rating4.6
- Reviews3,246
-
Countdown to Zero Day: Stuxnet and the Launch of the World's First Digital Weapon
by Kim Zetter
- List rank#2
- Price$14.95
- Rating4.5
- Reviews2,448
-
This Is How They Tell Me the World Ends: The Cyberweapons Arms Race
by Nicole Perlroth
- List rank#3
- Price$13.21
- Rating4.6
- Reviews4,696
-
Sleeper Code: A novel (Kevin McGuire)
by Kevin McGuire
- List rank#4
- Price$10
- Rating4.5
- Reviews524
-
Cybersecurity First Principles: A Reboot of Strategy and Tactics
by Rick Howard
- List rank#5
- Price$17.07
- Rating4.7
- Reviews109
-
Cybersecurity All-in-One For Dummies
by Joseph Steinberg
- List rank#6
- Price$25.04
- Rating4.6
- Reviews264
-
Phantom Rising: A Sleeper Code Novel
by Kevin McGuire
- List rank#7
- Price$0.99
- Rating5.0
- Reviews34
-
Practical Malware Analysis: The Hands-On Guide to Dissecting Malicious Software
by Michael Sikorski
- List rank#8
- Price$46.96
- Rating4.8
- Reviews646
-
Digital Forensics Cookbook: Field-Tested Recipes for Real-World Investigations Across Windows, macOS, Linux, iOS, and Android
by Cody Bounds
- List rank#9
- Price$35.99
- Rating5.0
- Reviews7
-
How Cybersecurity Really Works: A Hands-On Guide for Total Beginners
by Sam Grubb
- List rank#10
- Price$28.99
- Rating4.8
- Reviews302
Same niche in Kindle eBooks: Viruses & Malware
FAQ
Is Viruses a good niche for Amazon KDP?
Its KDPTop opportunity score is 35/100, which makes it highly competitive. The median best seller has 40 reviews and sells for $32.25.
How many reviews do you need to rank in Viruses?
The median best seller has 40 reviews, and 70% of them have fewer than 100.
What do Viruses best sellers cost?
The median price is $32.25; half of the best sellers are priced between $22.43 and $45.50.
Can new books break into Viruses?
12% 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.