According to the survey, 123456 is the most common password used by people for their online accounts around the world.
Hacking was not only done by bad people. There are also ethical hackers who help companies and organizations to improve their security.
The first computer virus, Creeper, was discovered in 1971 and only spread itself to the same computer.
In 2017, Wannacry's ransomware attacks attacked more than 200,000 computers worldwide.
Some countries use cyber technology to spionage to other countries.
Phishing technique is one of the most common methods used by cyber criminals to steal sensitive information such as passwords and credit card numbers.
Encryption is a technique used to protect confidential data by turning it into a code that can only be read by people who have encryption keys.
Many applications and websites use SSL technology to make internet connections safer by encrypting data sent between servers and browsers.
Large companies like Google and Facebook have a security team consisting of thousands of information security experts who work to protect their users.
Cyber security threats continue to develop and become more complex, so it is important for organizations and individuals to always renew the software and strengthen their passwords to protect themselves from attacks.
