The three most popular combinations

Researchers at the data analysis firm Data Genetics have found that the three most popular combinations – 1234, 1111, and 0000 – account for close to 20 per cent of all four-digit passwords.

So choosing your birthday, your birth year, or a number that might be a lot of other people’s birthday or birth year makes your password significantly easier to guess.

(Although, as Data Genetics acknowledges, you probably shouldn’t go out and choose 8068 now that this is public information.) Data Genetics came up with the numbers by analysing a database of 3.4 million stolen passwords that have been made public over the years.

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