The other account had a «hard» password — random 10 - character strings of numbers and letters, both in lower and upper case, without special characters. (sciencedaily.com)
Credit card accounts use an algorithm, but online tools create as many legitimate character strings as you want. (money.stackexchange.com)
Also, certain character strings or logins of different members, for example, those which originate from the same computer, can result in the blocking of suspicious activity. (elitesingles.ie)