6 billion leaked passwords reveal those it is best to by no means, ever use
Abstract created by Good Solutions AI
In abstract:
- PCWorld studies that evaluation of 6 billion leaked passwords reveals the highest stolen credentials are predictable sequences like ‘123456’, ‘password’, and ‘admin’.
- 5 main infostealer malware households, led by LummaC2 with over 60 million stolen passwords, compromised practically 100 million login particulars in 2025.
- Customers ought to make use of password managers, allow two-factor authentication, and keep away from widespread eight-character patterns to guard in opposition to more and more subtle cybersecurity threats.
Over the course of the previous yr, safety researchers at Specops Software program examined six billion leaked passwords and subsequently revealed a complete report on their findings. This report not solely gives perception into essentially the most generally used passwords, but additionally into the present risk posed by leaks.
These are essentially the most steadily stolen passwords
Sadly, the highest 5 most stolen passwords present that few customers have realized their lesson lately. As earlier than, the passwords are as follows:
- 123456
- 123456789
- 12345678
- admin
- Password
It’s alarming that most individuals apparently don’t even hassle to decide on particular person phrases as passwords. Along with the 5 commonest passwords, the researchers additionally steadily found password combos with phrases akin to good day, welcome, visitor ,or pupil.
This implies that these usually are not solely personal accounts, but additionally firm, college or public entry knowledge. The ever-popular “qwerty” can also be represented once more, i.e. merely the primary six letters of a keyboard that makes use of an English format.
Passwords ending in “@123” or “@1234” are additionally steadily used. These are sometimes preceded by a reputation, a rustic or a regular phrase akin to “good day” or “hola”. Right here, too, customers are proving to be somewhat uncreative. The researchers additionally level out that it’s not sufficient to make use of “extra complicated passwords” with a capital letter and a particular character in the event that they all the time comply with the identical sample.
Apparently, many of the passwords within the evaluation are precisely eight characters lengthy. Slightly below a sixth attain this size, however that is most likely on account of the truth that “password” has precisely eight letters. Shorter passwords with seven or fewer characters are comparatively unpopular.
These are essentially the most harmful infostealers
As well as, the researchers indicated which infostealers stole essentially the most knowledge from the set between January and December 2025:
- LummaC2: 60,934,662 stolen passwords
- RedLine: 31 ,144,858 stolen passwords
- Vidar: 5,965,748 stolen passwords
- StealC: 3 ,441,423 stolen passwords
- Raccoon Stealer: 1 ,656,673 stolen passwords
Collectively, these 5 malware households alone are answerable for the theft of practically 100 million login particulars. Password leaks due to this fact usually happen on a big scale and have an effect on hundreds of thousands of individuals directly, as this FBI-powered leak in December reveals.
Much less tech-savvy customers, who are sometimes victims of phishing campaigns, are stated to be notably in danger. Researchers additionally take into account the risk posed by Lumma Stealer to be notably severe, because it has risen considerably within the listing of essentially the most harmful packages. The highest suppliers of information stealers are additionally creating more and more efficient packages that bundle numerous choices.
The way to defend your self
Each personal customers and system directors ought to be certain to make use of safe and sophisticated passwords that don’t comply with a typical sample. It’s best to make use of a password supervisor to create and retailer essential entry knowledge.
As well as, it could possibly assist to make use of two-factor authentication. Additionally, keep away from passwords which have already been leaked. For instance, you possibly can examine whether or not your password has been stolen up to now through the Have I Been Pwned web site.
Common password resets and updates also needs to defend in opposition to theft. Admins can set particular pointers for this, for instance, every year or as soon as each x months.
This text initially appeared on our sister publication PC-WELT and was translated and localized from German.

