I would rather suggest not to save your password on emails because, modern
password crackers are much more efficient these days.
The efficiency of password cracking depends on two largely independent things:
power and
efficiency.
Power is simply computing power. As computers have become faster, they're able to test more passwords per second; one program advertises eight million per second. These crackers might run for days, on several machines, simultaneously. For a high-profile police case, they might run for months.
Efficiency is the ability to guess passwords cleverly. It doesn't make sense to run through every eight-letter combination from "aaaaaaaa" to "zzzzzzzz" in order. That's 200 billion possible passwords, most of them are very much unlikely. Password crackers try the most common passwords first.
Modern password crackers combine different words from their dictionaries. They can crack these passcodes such as; "k1araj0hns0n," "Sh1a-labe0uf," "Apr!l221973," "Qbesancon321," "DG091101%," "@Yourmom69," "ilovetofunot," "windermere2313," "tmdmmj17," "qeadzcwrsfxv1331." "gonefishing1125" etc. within seconds.
Nowadays, the attacker will feed any personal information he has access to about the password creator into the password crackers. A good password cracker will test names and addresses from the address book, meaningful dates, and any other personal information it has. Postal codes are common appendages. If it can, the guesser will index the target hard drive and create a dictionary that includes every printable string, including deleted files.
If you ever saved an e-mail with your password, or kept it in an obscure file somewhere, or if your program ever stored it in memory, this process will grab it. And it will speed the process of recovering your password.
One solution for not saving your passwords on your email account would be to choose something that these password crackers will miss to formulate. My advice is to take a sentence and turn it into a password. Something like "
This little piggy went to market" might become "
tlpWENT2m". That nine-character password won't be in any cracker's dictionary. Of course, don't use this one, because I've written about it. Choose your own sentence, something personal.
tl;dr: Make your own password which is easier to remember but harder to crack. (even with super computers
)