If you are interested in cybersecurity, you should check out Google's new video series, HACKING GOOGLE, on how its cybersecurity teams protect the company from cyberattacks.
It starts with an overview of the 2009 Operation Aurora cyber attack that motivated Google to create focused teams to stay ahead of ever-evolving cyber threats. The videos then cover five Google cybersecurity teams: Threat Analysis Group (TAG), Detection and Response Team (D&R), Red Team, Bug Hunters, and Project Zero.
After watching the videos, you can try the h4ck1ng.google series of cybersecurity capture the flag challenges that test how good you are in searching for clues hidden throughout the series and using them to solve 24 different puzzles.