This could be a birth year or anniversary and if a hacker can guess someone's age, or even obtain it through birth records or online accounts, for example, they could make an educated guess at the PIN.
In fact, every single 19+ combination appeared in the top fifth of the list.
The majority of PINs in the DataGenetics list began with the number one, which may be due to the popularity of using birth years.
The numbers zero and two were also popular.
The research found that the higher the number from 0-9, the lower its frequency at the start of the code.
A recent study found that a pet's name is the most common online password.
As many as one in six people uses their pet's name as a password.
One is six Britons admitted accessing someone else's account by guessing the password, with partners the most common target, followed by exs.
One in ten people has also guessed a work colleague's password, the study by Google Apps found.
据英国《每日邮报》8月2日报道,科技顾问公司数据基因(DataGenetics)在对340万个四位密码进行研究后指出,1234仍是人们最常使用的密码组合,比例接近11%。
根据该项研究,在这340万个四位密码中,尝试一次即被破解的密码高达10%,尝试不到20次就能破解的密码超过了25%。同时,研究人员还发现以19开头的密码出现的频率非常高,其主要原因应该是人们往往喜欢用自己的出生年份作为密码,这也让黑客有了可乘之机,他们只要通过这些人的网上账户查到其年纪,就可以轻易破解密码。
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