'123456' is the most common password of 2023, followed by admin, 12345678, 123456789 and 1234, according to NordPass. Other passwords on the list are 12345, password, 123, Aa123456, 1234567890, UNKNOWN, 1234567, 123123, 111111 and Password. "The list was compiled in partnership with independent researchers specialising in researching cybersecurity incidents," NordPass said.