Frank Hissen
Computer Scientist / IT security expert
4.29 (5361 reviews)
10
active courses
1
removed courses
Jan 2016
first content date
Apr 2025
last content date
28785
total students
5361
total reviews
4.29
average rating
13
total content length
Courses
Secure Programming of Web Applications - Developers and TPMs
7.9K
students
2 hours
content
Apr 2025
updated
$19.99
Java Crypto (JCA/JCE): Secure Hashing, Passwords and PBKDF2
962
students
41 mins
content
Sep 2024
updated
$19.99
Introduction to Encryption - Terminology and Technology
607
students
42 mins
content
Mar 2020
updated
$44.99
Einführung in die Verschlüsselung: Terminologie & Technik
2.5K
students
37 mins
content
Sep 2021
updated
$29.99
File Encryption Basics and Practices with CrococryptFile
14.1K
students
43 mins
content
Sep 2021
updated
FREE