encrypted sites.dat - password & cached memory

[loopex]

sites / security / set password

When sites.dat being encrypted, does the original non encrypted sites.dat being wiped from
the harddrive several times? if not? then it is still possible to recover the site.dat readable... and thats not good...

when open flashfxp and the encrypted sites.dat being decrypted, will it be cached in memory unencrypted? till the program exits? Does the memory gets wiped on exit?

does the password we enter when we fire up flashfxp being stored in memory?
if so? will it being wiped on exit or power down?


Thanks