The video is a tutorial about cyber security threats. It discusses the importance of protecting electronic devices from hackers who conduct cyber attacks. Cyber security involves practices to safeguard computers, mobile devices, and data from malicious cyber threats. The types of cyber security threats are explained, such as phishing and ransomware attacks. Phishing involves obtaining personal information through emails or messages, while ransomware locks important files and demands a ransom. A specific ransomware attack, WannaCry, is detailed, where hackers encrypted files and demanded a ransom in bitcoin, utilizing a flaw in the Windows operating system to spread across computer networks.