Cyprus University students analyzed more than 1 billion username and password combinations that were leaked online from various corporate data breaches. The most common password is 123456, covering around 7 million entries per billion of usernames. Average password length is only 9.4822 characters long. Only 12.04% of analyzed passwords contained special characters. 53% of users have not changed their passwords in the last 12 months, according to a recent study by computer engineering students at Cyprus University. Bitdefenders Digital Identity Protection tool can check if your private data has been exposed.”]