Internet users have been warned not to use simple passwords for online accounts, following the release of a list of the most common passwords leaked online last year.
Top of the list compiled by SkOUT Secure Intelligence remains "123456", followed by "password".
Other variants of sequential numerical passwords in the top five include '123456789', '12345678' and '12345'.
New at number six is "111111", while "1234567", "sunshine", "qwerty" and "iloveyou" make up the remainder of the top ten.
Among the new entrants to the top 25 this year are "666666" and "donald", thought to be a possible reference to the US President.
According to the company simple passwords like these are vulnerable to cyber-attacks and data breaches.
It said that last month experts discovered what is believed to be the largest collection of breached data in cyber-security history, when more than 770 million email addresses and passwords were posted to a hacking forum.
It is believed that the collection of hacked emails and passwords was compiled by cyber-criminals using a variety of different individual data breaches.
The company recommends users change their passwords regularly, ideally every 90 days, because password leaks often happen months, or even years, after the passwords are taken.
It also suggests people remember rather than write down passwords and that where possible two-factor authentication should be used.
The 25 most commonly used passwords of 2018 are:
1. 123456 (Unchanged)
2. password (Unchanged)
3. 123456789 (Up 3)
4. 12345678 (Down 1)
5. 12345 (Unchanged)
6. 111111 (New)
7. 1234567 (Up 1)
8. sunshine (New)
9. qwerty (Down 5)
10. iloveyou (Unchanged)
11. princess (New)
12. admin (Down 1)
13. welcome (Down 1)
14. 666666 (New)
15. abc123 (Unchanged)
16. football (Down 7)
17. 123123 (Unchanged)
18. monkey (Down 5)
19. 654321 (New)
20. !@#$%^&* (New)
21. charlie (New)
22. aa123456 (New)
23. donald (New)
24. password1 (New)
25. qwerty123 (New)
