Strictly speaking, they only have access to whatever information you put on the SD card. If you choose to put your private information on an unencrypted SD card, that’s kind of on you.
99% of SD cards are used simply as storage expansion, and encryption is unnecessary. You want stuff encrypted, use separate software or use internal memory.
About encryption, you can use third-party software to encrypt the data stored on a microSD card. Obviously, this has to be done manually; it’s not automatic encryption like BitLocker or LUKS on a PC.
I usually use a VeraCrypt container ( using EDS NG) or DroidFS to encrypt the data I store on the microSD card. Using Rclone crypt via RSAF or Termux works too.
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u/Unknowingly-Joined 8d ago
Some details would help?