Vendor specific:
- Paloalto –> https://www.paloaltonetworks.com/services/education/digital-learning
- Fortinet –> https://training.fortinet.com
- Juniper –> https://learningportal.juniper.net/juniper/user_activity_info.aspx?id=5798
- Checkpoint –> https://www.checkpoint.com/elearning/
Other topics:
- CompTIA fundamentals –> https://certs.comptia.org/means_more/
- Cisco (Python introduction) –> https://www.cisco.com/c/m/en_sg/partners/cisco-networking-academy/index.html
- Cybersecurity fundamentals –> https://www.cyberaces.org/courses.html
- Security at IBM –> https://www.securitylearningacademy.com/
- ICS –> https://ics-cert-training.inl.gov/learn
- Automation and ICS –> https://rockwellautomationfastpass.training.com/user/register
- CISA ICS –> https://ics-cert-training.inl.gov/learn
- AWS –> https://pages.awscloud.com/digital-virtual-learning.html
- AWS Security –> https://aws.amazon.com/training/course-descriptions/security-fundamentals/
- Cybrary –> https://www.cybrary.it/
- KhanAcademy –> https://www.khanacademy.org/
- Symantec –> https://www.broadcom.com/support/symantec/services/education/elibrary
- Kaspersky –> https://support.kaspersky.com/learning/courses
- ICSI CNSS –> Link (Coupon Code #StaySafeHome)
- Web Security –> https://portswigger.net/web-security
Non security related:
- Computer science –> https://github.com/anu0012/awesome-computer-science-opportunities/blob/master/README.md#computer-science
- Azure –> Link
- Linux Foundation –> https://training.linuxfoundation.org/resources/?_sft_content_type=free-course
Sources: This and different /r/ threads