Statisticsfilter: Given available information about the distribution of self-selected 4-digit passwords (specifically banking PINs), is it possible to calculate the probability of two randomly selected individuals having the same PIN? If so, what're the odds? [more inside]
posted by myrrh on Oct 27, 2012 - 15 answers

Is my password safe after a "System Tool" malware infection? Can malware (system tool) use a proxy or key logger or otherwise detect bank account passwords accessed with the (hopefully previously) infected computer. How can one be sure the infection is totally removed? xp fully updated, avg free, scanned and cleaned following these instructions
posted by flummox on Mar 24, 2011 - 3 answers

I have noticed that there seems to be a split between some banks/financial institutions who maintain complex security around their on-line account access and others who seem to have actively migrated towards a much simpler approach. Is there any evidence that the "simple" approach is either more or less secure than the "complex" one? [more inside]
posted by rongorongo on Jun 6, 2008 - 7 answers

Why are many financial institutions moving to a two-step login process, where you enter your username on one page and then your password on the next? For instance, Vanguard and ING. Their rationale is just that it's "more secure", but that's not much of a reason.
posted by smackfu on Aug 20, 2006 - 13 answers