Professor Messer
Professor Messer provides free, high-quality video training for IT certification exams including CompTIA Security+, Network+, A+, and more. Instructor Jason Messer is widely respected in the IT community for clear, focused exam prep training. Courses cover study guides, practice tests, and detailed video tutorials covering every exam objective.
All Professor Messer Courses (1)
Professor Messer's free CompTIA Security+ (SY0-701) course consists of 121 videos totaling roughly 15 hours, covering every exam objective: threats, identity and access, cryptography, network defense, and incident response. If you're planning to take the Security+ certification exam, this is the de facto industry-standard free study resource used by thousands. It's designed for IT professionals or students with networking knowledge already (Network+ level) pursuing the Security+ credential. The limitation: it is exam-prep-shaped and focuses on passing the test rather than building hands-on labs. The exam itself costs money.