Encripted usb Password generator

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hello dear friends.

over past couple of years received messages many websites i've been registered have been hacked exposing personal details. names ebay, many more...

i decided best way keep myself safe have file random generated passwords every site, perhaps stored in kind of usb flash memory using arduino (i need few kb) split data text, keylogger, upon entering password. flash protected , couple of tries wrong access password lock device permanently. suggestions start build such device?

or perhaps better idea altogether, knows?

thanks

archive text file in encrypted .zip on usb. remember zip file password. unrelated arduino


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