SanDisk 3.1 will not password protect Ultra Fit USB

I (there are multiple ways on a MacBook) password protect my memory cards using Apple's software instead of SanDisk SecureAccess or one of the many 3rd party apps out of convenience & theory it will work better on a mac than using a 3rd party service. Until my SanDisk Ultra Fit 3.1 thumb drive, every USB memory card has successfully re-keyed the card to successfully password protect my USB the same way. That way is Disk Utility via means of clicking erase, and choosing one of the, well as of now 3 options with (journaled, encrypted) at the end of the option. With "encrypted" as the last word, it means you must choose a password before it will erase. With the 3.1 thumb drive, the pop-up box to choose a password doesn't appear as with my 3.0 SanDisk USB matching in size and every single other USB memory card I have used. How do you password protect a 3.1 Ultra Fit made by SanDisk using apple's built in software?


I would like to suggest a solution, how do you change the partition map on the APFS system, the proper Apple only map is "GUID Partition Map". The SanDisk's come with a "Master Boot Record" map & I don't know how to change it because since it changed storage management with the APFS, it does not give the option to choose the map. I will try it & let you know if you can tell me how to erase it with Disk Utility while switching it to the "GUID Partition Map", I think it will fix it. If not, does any body have a better idea or any feedback how to password protect my 3.1 Ultra Fit USB drive?

MacBook Air

Posted on Jan 2, 2019 1:48 PM

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Jan 29, 2019 12:30 PM in response to sethvander7

Well I re-thought the situation and bought a mini SSD with twice the read/write speed. I received the drive and found that I could not reformat PNY SSD's either. So I took your advice creating a disk image on the disk. Originally when I asked the genius bar that is what they told me to do. Shortly after I found the guide partition map option and an encrypted journaled option and haven't had a problem until the 3.1 SanDisk release. It's like some companies are working against apple's super secure encryption technology that actually gives private US citizens the privacy every USA citizen thought they had from the get go. Well dumb *****, from the kid who wrote the book on starting trouble and getting away with it, if your fighting some one who is smarter than you, your effort is a waste of time and resources, and I will only further increase your head ache and frustration. If there is a will there's a way. And what I take most seriously and hold above all else is my security. Like every person in the world, obviously protection from physical torture or some people call it intentional induced pain, and secondly the image guerrilla deuschbag’s keep trying to **** on. Well it’s not that the information is that sensitive or classified, plain and simply I like to know my bank statement’s, medical scan’s, picture’s of fungal/bacterial infection I never identified that happen’s to have a good full picture of my coc$, or other thing’s I am not sure of so I thought it would be a good idea to save if I ever gain a better understanding of the situation. Either way, with the 1,000’s of app’s and the ability every human has to take action to make any effort they want, if it is securing information on a memory card, that is one easy task, I have so many application advertisement's for this easy procedure. 


Did you know I could learn how to code, pull up a different system and re-write the operating system code to match a SanDisk 3.0 so it will format to a password protected .dmg instead of having to write a separate .dmg image with 258 bit-aes encryption, well I use 1,032 bit-aes encryption, but I made that encryption myself. Good luck on trying to outsmart the kid who wrote the book on ruining everything, so because your trying to snag a usb I bring out in public with a distraction of loud noise, paramedic crew, or protest, maybe a cute girl to help pick out a book in the cd section, if you successfully distract me just enough to switch it with a replica while you copy a duplicate encrypted .dmg before you use what you calculated as the most likely distraction to distract my attention to get me to physically walk around the corner with out my MacBook to look at who is causing the commotion. It will never succeed because, there is something else you will never catch on to, it is secure, quit trying. Press a button and it wipes like I went into my iCloud find my iPhone app and press the Lost Erase all Information button. If you don't know something, any other computer or MacBook will delete all information upon insertion into the USB slot, like I said, you have no chance, like I will show you my full hand.

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SanDisk 3.1 will not password protect Ultra Fit USB

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